1968 in the Vietnam War

;1–2 January

The PAVN violated the New Year's truce in the New Year's Day Battle of 1968. Among the Americans fighting were future writer Larry Heinemann and future film director Oliver Stone.{{cite web|date = February 27, 2010|url = http://gaijinass.wordpress.com/2010/02/27/platoon/|title = Platoon: The story of Oliver Stone in Vietnam|publisher = gaijinass|access-date = March 3, 2010|last = Gaijinass|archive-url = https://web.archive.org/web/20100620021713/http://gaijinass.wordpress.com/2010/02/27/platoon/|archive-date = 2010-06-20|url-status = dead}}{{cite book|last=Bates|first=Milton|title=The wars we took to Vietnam: cultural conflict and storytelling|year=1996|publisher = University of California Press|isbn= 978-0-520-20433-1|page=106}} The PAVN lost 328 killed, while U.S. losses were 23 killed.{{cite news|newspaper=The New York Times|title=G.I.'s Kill 348 in Repelling Foe's Attack During Truce|last=Johnson|first=Thomas A.|date=3 January 1968|page=1}}

In Newsweek magazine Robert Komer touted the early success of the Civil Operations and Revolutionary Development Support (CORDS) pacification program he led. He said that "only one South Vietnamese in six now lives under VC [Viet Cong] control."{{rp|871}}

;2 January

Elements of the 12th Cavalry Regiment engaged a unit from the PAVN 2nd Division in a four-hour-long battle 5 km south of Firebase Ross resulting in 3 U.S. and 39 PAVN killed.{{Rp|99–100}}

;3 January

The VC launched more than 50 122 mm rockets at Da Nang Air Base destroying a United States Marine Corps (USMC) F-4B and two United States Air Force (USAF) aircraft and damaging 17 others.{{cite book|last=Shulimson|first=Jack|title=U.S. Marines in Vietnam: 1968, the Defining Year|publisher=History and Museums Division, USMC|year=1997|url=https://archive.org/stream/USMarinesInVietnamTheDefiningYear1968#page/n0/mode/2up|isbn=0-16-049125-8}}{{PD-notice}}{{rp|98–9}}

The PAVN 3rd Regiment, 2nd Division attacked four U.S. firebases in the Quế Sơn Valley southwest of Hội An, launching ground attacks against Landing Zone Leslie and Firebase Ross. Leslie was occupied by D Company and a platoon from A Company, 2nd Battalion, 12th Cavalry. The PAVN penetrated the base, attacking bunkers with flamethrowers and satchel charges before being pushed out in the afternoon. Losses were 15 U.S and 63 PAVN.{{cite book|last=Krohn|first=Charles|title=The Lost Battalion of Tet: Breakout of the 2/12th Cavalry at Hue|publisher=Naval Institute Press|year=2008|isbn=9781591144342|page=28}} The PAVN emplaced heavy machine guns around Leslie and over a nine-day period shot down seven 1st Cavalry Division helicopters and damaged a further 26.{{rp|100}} At Ross the attack was repulsed with losses of 18 U.S. and 331 PAVN killed.{{rp|100}}

;4 January

A unit of the U.S. 4th Infantry Division operating in Đắk Tô District captured a classified five-page North Vietnamese document, titled "Urgent Combat Order No. 1", that described the strategy for a series of attacks to take place in Pleiku in conjunction with the upcoming Tết holiday.{{cite book|last=Willbanks|first=James|title=The Tet Offensive: A Concise History|publisher=Columbia University Press|year=2008|isbn=978-0231128414}}{{rp|28}}

A PAVN rocket and mortar attack on Ban Me Thuot East Airfield destroyed two UH-1s and severely damaged three others.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010683.pdf|title=Combat After Action Report|publisher=155th Assault Helicopter Company|date=3 February 1968|access-date=14 July 2020}}

;5 January

The "Boston Five" Michael Ferber, Dr. Benjamin Spock, William Sloan Coffin, Mitchell Goodman and Marcus Raskin were indicted by a Grand jury in Boston on charges of conspiring to counsel young men to violate draft laws.{{cite news|title=Boston Grand Jury Indicts Five For Working Against Draft Law|newspaper=Harvard Crimson|author=William Kutik|date=8 January 1968|url=http://www.thecrimson.com/article/1968/1/8/boston-grand-jury-indicts-five-for/}}

;8 January

A CH-53A of HMH-463 crashed in the Hải Lăng Forest south of Đông Hà Combat Base, killing all 46 personnel on board{{cite web|url=https://aviation-safety.net/wikibase/wiki.php?id=76027|title=ASN Wikibase Occurrence #76027|publisher=Aviation Safety Network|access-date=20 August 2020}}

;9 January

At a meeting with Commander of the Military Assistance Command, Vietnam (MACV) General William Westmoreland, II Field Force, Vietnam commander Major General Frederick C. Weyand showed Westmoreland that PAVN/VC main force units in the III Corps area were moving in from the Cambodian border towards Saigon. Weyand received permission from Westmoreland to cancel scheduled operations near the border and shift his forces back towards Saigon.{{cite book|last=Cosmas|first=Graham|title=The Joint Chiefs of Staff and The War in Vietnam 1960–1968 Part 3|publisher=Office of Joint History Office of the Chairman of the Joint Chiefs of Staff|year=2009|url=https://www.jcs.mil/Portals/36/Documents/History/Vietnam/Vietnam_1960-1968_P003.pdf|isbn=978-1482378696}}{{PD-notice}}{{rp|144}}

;10 January

VC sappers penetrate the perimeter of Kontum Airfield and destroyed several helicopters with Satchel charges, killing 7 Americans and wounding 25. An estimated 16 VC were killed in the attack.{{cite news|title=Vietcong Press Drive From Highlands to Delta; Base and Towns Shelled -Civilian Deaths Reported|work=The New York Times|url=https://www.nytimes.com/1968/01/11/archives/vietcong-press-drive-from-highlands-to-delta-base-and-towns-shelled.html|date=11 January 1968|access-date=14 July 2020}}

;12 January

The Kampuchean Revolutionary Army was established by the orders of Pol Pot, the leader of the Communist Party of Kampuchea (CPK).{{cite book|last=Bartrop|first=Paul|title=A Biographical Encyclopedia of Contemporary Genocide: Portraits of Evil and Good|publisher=ABC-CLIO|year=2012|isbn=978-0313386787|page=122}}

;15 January to 9 February

Operation San Angelo was a 1st Brigade, 101st Airborne Division search and destroy operation in Quang Duc and Phước Long Provinces. the operation resulted in 63 PAVN/VC and 12 U.S. killed.{{cite web|url=https://www.vietnam.ttu.edu/resources/operations/operations.txt|title=Vietnam Archive Operations Database|publisher=The Vietnam Center and Archive|accessdate=10 November 2021}}

;18 January

File:Clark M. Clifford.jpg

President Lyndon Johnson nominates Clark Clifford to succeed Robert McNamara as United States Secretary of Defense.{{cite book|author=Roger R. Trask|title=The Secretaries of Defense: A Brief History, 1947–1985|url=https://archive.org/details/secretariesofdef00wash|year=1985|publisher=Historical Office, Office of the Secretary of Defense|page=[https://archive.org/details/secretariesofdef00wash/page/34 34]}}

At a White House luncheon with First Lady Lady Bird Johnson in a discussion about juvenile delinquency, singer Eartha Kitt said "You send the best of this country off to be shot and maimed. They rebel in the street. They will take pot ... and they will get high. They don't want to go to school because they're going to be snatched off from their mothers to be shot in Vietnam." Her remarks caused Mrs. Johnson to burst into tears and led to Kitt being blacklisted and investigated by the CIA, effectively ending her career.{{cite news|title='Sex kitten' vs. Lady Bird: The day Eartha Kitt attacked the Vietnam War at the White House|author=DeNeen L. Brown|newspaper=The Washington Post|date=19 January 2018|url=https://www.washingtonpost.com/news/retropolis/wp/2018/01/19/sex-kitten-vs-first-lady-eartha-kitt-yells-at-lady-bird-johnson-about-vietnam/}}

;19 January

In the first two weeks of 1968, PAVN/VC forces shelled 49 district and provincial capitals in South Vietnam and temporarily occupied two of them. General Westmoreland described the fighting to Time magazine "as the most intense of the entire war." MACV claimed that 5,000 PAVN/VC had been killed.{{rp|896}}

;20 January

Ron Kovic serving with the 1st Amphibian Tractor Battalion, 3rd Marine Division was shot and paralysed during a battle with the PAVN in the vicinity of the village of My Loc, in the Demilitarized Zone (DMZ).{{cite book|last=Gay|first=Kathlyn|title=American Dissidents: An Encyclopedia of Activists, Subversives, and Prisoners of Conscience|url=https://books.google.com/books?id=ZzQVpPvlVMcC&pg=PA362|year=2012|publisher=ABC-CLIO|isbn=978-1-59884-764-2|pages=359–362}}

;20–31 January 1969

Operation McLain a security operation conducted by the U.S. 3rd Battalion, 506th Infantry Regiment, 101st Airborne Division and ARVN 44th Regiment, 23rd Division in Bình Thuận Province commences. The operation results in 1,042 VC and 69 U.S. killed.{{cite book|last=Villard|first=Erik|title=United States Army in Vietnam Combat Operations Staying the Course October 1967 to September 1968|publisher=Center of Military History United States Army|year=2017|isbn=9780160942808|url=https://history.army.mil/html/books/091/91-15-1/index.html|archive-url=https://web.archive.org/web/20180206190325/https://history.army.mil/html/books/091/91-15-1/index.html|url-status=dead|archive-date=February 6, 2018}}{{PD-notice}}{{rp|478}}{{cite web|url=https://apps.dtic.mil/dtic/tr/fulltext/u2/a955261.pdf|archive-url=https://web.archive.org/web/20200226032528/https://apps.dtic.mil/dtic/tr/fulltext/u2/a955261.pdf|url-status=live|archive-date=February 26, 2020|title=United States Military Assistance Command, Vietnam Command History 1969 Volume III|publisher=Headquarters United States Military Assistance Command, Vietnam|date=30 April 1970|access-date=5 July 2020|page=L-3}}{{PD-notice}}

;21 January

North Korean commandos carry out the Blue House raid, the most significant escalation in the low-intensity conflict that had been underway in South Korea since October 1966. The attack raised the possibility that the South Korean Government might want to withdraw some of their forces in South Vietnam for homeland defense, requiring their replacement by already overstretched American forces.{{rp|152}}

;21 January – 31 March

Operation Jeb Stuart was planned as an operation by the 1st Cavalry Division to attack PAVN base areas in I Corps, but instead saw the division supporting other Allied forces during the Tet Offensive.{{rp|16}}

;21 January – 9 July

File:C-130 Hercules taking off from Khe Sanh 1968.jpg

The long and bloody Battle of Khe Sanh began with an assault by the PAVN on Khe Sanh Combat Base in northwestern Quảng Trị Province. The combatants were elements of the U.S. III Marine Amphibious Force (III MAF) and the ARVN against two to three PAVN division-size elements.Clarke, Bruce B. G. (2007), Expendable warriors: the Battle of Khe Sanh and the Vietnam War, Greenwood Publishing Group, p. 69 PAVN General Võ Nguyên Giáp later claimed that his objective was to create a diversion to draw U.S. forces away from the populated areas of South Vietnam. Khe Sanh diverted 30,000 US troops away from the cities that would be the main targets of the Tet Offensive.Page, Tim and Pimlott, John Pimlott (1990), Nam – The Vietnam Experience, 1965–75, London: Hamlyn, p. 324 The USAF began Operation Niagara to provide continuous air support during the siege.{{cite book|last=Nalty|first=Bernard|title=Air Power and the Fight for Khe Sanh|publisher=Office of Air Force History|year=1986|isbn=9781508416906|url=https://media.defense.gov/2010/May/26/2001330289/-1/-1/0/AFD-100526-029.pdf|page=95}}

;21 January - 23 November

Operation Lancaster II a security operation to keep Route 9 open to Ca Lu Combat Base in northern Quảng Trị Province commences. By the end of the operation the Marines had lost 359 killed; PAVN fatalities were estimated to be in excess of 1,800.{{rp|119}}

;23 January

North Korean forces seize the {{USS|Pueblo|AGER-2|6}}.{{rp|152}}

;23–4 January

The Battle of Ban Houei Sane began on the night of 23 January, when the 24th Regiment of the PAVN 304th Division overran the small Royal Lao Army (RLA) outpost at Ban Houei Sane. The PAVN lost 29 killed, while RLA losses are unknown. The RLA survivors fled across the border to Lang Vei Special Forces Camp.{{cite book|last=Cash|first=John|title= Seven Firefights in Vietnam|year=1985|publisher=DIANE Publishing|isbn=978-1-56806-563-2|page=111}}

;23 January - 12 February

Operation Coronado X conducted by the U.S. Mobile Riverine Force (MRF) and the ARVN, was originally planned as a sweep of western Dinh Tuong Province and eastern Kien Phong Province, however with the outbreak of the Tet Offensive on 31 January 1968 it instead became the MRF reaction to eject VC forces from Mỹ Tho and Vĩnh Long. The operation resulted in 269 VC killed for the loss of 12 U.S. killed.{{cite book|last=Fulton|first=William B.|title=Riverine Operations 1966–1969|publisher=United States Army Center of Military History|url= https://archive.org/details/CMHPub90-18/page/n1|year=1973|isbn=978-1780392479}}{{PD-notice}}{{rp|148}}

;24 January − 1 March

File:W Coy 2RARNZ during Operation Coburg SVN 1968 (AWM CAM680180VN).jpg

Operation Coburg was an Australian military action that saw heavy fighting between the 1st Australian Task Force (1ATF) and PAVN and VC forces during the wider fighting around Long Binh and Biên Hòa.{{cite book|last1=McNeill|first1=Ian|last2=Ekins|first2=Ashley|title=On the offensive: the Australian Army in the Vietnam War, January 1967 – June 1968|year=2003|publisher=Allen & Unwin|isbn= 978-1-86373-304-5|page=290}}

;26 January

In Time magazine, General Westmoreland said, "the Communists seem to have run temporarily out of steam."{{rp|896}}

Two companies of the PAVN 408th Sapper Battalion attacked Camp Holloway destroying five UH-1 helicopters and an ammunition storage area.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010691.pdf|title=Enemy Attack on US Installations After Action Report|publisher=Headquarters 52nd Combat Aviation Battalion|date=31 January 1968|access-date=14 July 2020}}

;28 January

General Westmoreland in his annual report said "In many areas the enemy has been driven away from the population centers; in others he has been compelled to disperse and evade contact thus nullifying much of his potential. The year ended with the enemy increasingly resorting to desperation tactics in attempting to achieve military/psychological victory; and he has experienced only failure in those attempts."{{rp|872}}

;January – February 1973

Operation Igloo White was a covert U.S. military electronic warfare operation carried out by the USAF 553d Reconnaissance Wing and the United States Navy VO-67 squadron to detect and interdict the Ho Chi Minh Trail.{{cite book|last=Van Staaveren|first=Jacob|title=Interdiction in Southern Laos, 1961–1968|publisher=Center of Air Force History|year=1993|url=https://media.defense.gov/2010/Sep/27/2001329814/-1/-1/0/AFD-100927-078.pdf|isbn=978-1410220608}}{{PD-notice}}{{rp|255}}

File:DeadVietCong1968.jpg]]

;29 January

At half-past midnight on Wednesday morning the PAVN launch the Tet Offensive at Nha Trang. At 2:45 that morning the US Embassy in Saigon is attacked, the VC fail to enter the Embassy building and 18 are killed and one captured, U.S. losses are five killed.{{rp|34–6}}

;29–30 January

The VC fired rockets at Da Nang Air Base and then at 02:30 on 30 January they launched a sapper and mortar attack on the south of the base killing four Marines. At 03:30 a renewed rocket attack on the base began with 55 122 mm rockets hitting within 20 minutes, killing three marines and wounding 11 and destroying five aircraft and damaging a further 14.{{rp|145–8}}

;30 January-4 February

The PAVN 406th Sapper Battalion and a company from the VC 304th Local Force Battalion attacked Kontum Airfield but were forced back by U.S. helicopter gunships and armor. The PAVN renewed their attack but failed to penetrate the airfield defenses. On 31 January, Company D, 1st Battalion, 22nd Infantry Regiment was landed at the airfield and the next day two companies from the 1st Battalion, 12th Infantry Regiment were flown into the airfield securing its northern perimeter. By 4 February the city had been secured and normal operations resumed at the airfield.{{rp|302–7}}

;30 January – 3 March

File:OperationHueCity1967wounded.jpg

The Battle of Huế was one of the bloodiest and longest battles. The ARVN and three understrength U.S. Marine battalions attacked and defeated more than 10,000 entrenched PAVN/VC.{{cite book |last=Stanton|first=Shelby|title=Vietnam order of battle|year=2003|publisher=Stackpole Books|isbn=978-0-8117-0071-9}}{{rp|11}} The PAVN/VC lost 5,113 killed and 98 captured in the battle, the ARVN lost 452 killed and the U.S. 216 killed.{{rp|213}} 844 Civilians were killed in the fighting. In the Massacre at Huế the PAVN/VC massacred 2,800–6,000 civilians and prisoners of war during their occupation of the city.{{cite book|last=Anderson|first=David|title=The Columbia Guide to the Vietnam War|publisher=Columbia University Press|year=2004|isbn=978-0231114936|pages=98–9}} In the aftermath of the battle South Vietnamese forces killed an estimated 1,000-2,000 people suspected of being VC or VC sympathisers.{{cite book|last=Bowden|first=Mark|title=Huế 1968: A turning point of the American war in Vietnam|publisher=Atlantic Monthly Press|year=2017|isbn=9780802127006|page=470}}

;31 January

In the deadliest single day for U.S. forces during the war 246 Americans were killed.{{cite news|title=The men killed on a single, bloody day in Vietnam, and the haunting wall that memorializes them|newspaper=The Washington Post|author=Joel Achenbach|date=25 May 2018|url=https://www.washingtonpost.com/news/retropolis/wp/2018/05/25/the-men-killed-on-a-single-day-in-the-vietnam-war-and-the-haunting-wall-that-memorializes-them/}}

;31 January – 7 March

File:Deadvietcong2.jpg

The PAVN/VC attacked major politico-military installations in and around Saigon.{{cite web|url=http://www.wood.army.mil/mpbulletin/pdfs/Spring%2008/Oberholtzer.pdf|archive-url=https://web.archive.org/web/20121019063558/http://www.wood.army.mil/mpbulletin/pdfs/Spring%2008/Oberholtzer.pdf|url-status=dead|archive-date=October 19, 2012|title=Looking Back in History:The Battle of Saigon Forty Years Ago|publisher=United States Army:Fort Leonard Wood|access-date=8 March 2010|last1=Oberholtzer|first1=William|last2=Watson|first2=Andy|page=1}} At Tan Son Nhut Air Base more than 670 PAVN are killed and 26 captured for the loss of 22 U.S. and 29 ARVN.{{cite book|last=Nolan|first=Keith|title=The Battle for Saigon Tet 1968|publisher=Presidio Press|year=1996|isbn=0891417699}}{{rp|92}} In the attack on the Joint General Staff Compound 10 VC are killed and 10 captured for the loss of 17 U.S. killed.{{cite web|url=http://www.historynet.com/tet-circling-the-wagons-in-saigon.htm|title=Tet: Circling the Wagons in Saigon|author=Rod Paschall|publisher=HistoryNet.com|date=4 January 2013|access-date=24 June 2020}} In the attacks on Bien Hoa Air Base and Long Binh Post 527 VC were killed and 47 captured for the loss of 11 U.S. killed.{{rp|352}} In the battle of Cholon 170 VC were killed for the loss of 12 U.S. killed.{{rp|346}}

In the attack on Quảng Trị the PAVN/VC lost 914 killed and 86 captured.{{cite book|last=Rawson|first=Andrew|title=Battle Story Tet Offensive 1968|publisher=The History Press|year=2013|isbn=9780752492506|page=16}}

A VC rocket and mortar attack on Chu Lai Air Base triggered an explosion in the bomb dump destroying three aircraft and damaging a further 23.{{rp|155}}

The VC attack on Quảng Ngãi Airfield and Quảng Ngai was repulsed at a cost of 56 ARVN and over 500 VC killed.{{rp|155}}

The VC attack on Vĩnh Long Airfield was repulsed at a cost of seven U.S. killed and three UH-1 helicopters destroyed.

File:Eddie Adams (1969).jpg with his picture of the Execution of Nguyễn Văn Lém.]]

;1 February

The ARVN 3rd Armored Cavalry Squadron, fought a pitched battle with the VC H-15 Local Force Battalion near Pleiku.{{cite web |url=http://www.vva.org/veteran/0410/tetinIIcorps.html |title=ARVN 3rd Cavalry Squadron fought a pitched battle |access-date=2010-06-11 |archive-url=https://web.archive.org/web/20101201233053/http://vva.org/veteran/0410/tetinIIcorps.html |archive-date=2010-12-01 |url-status=dead }} They were later awarded the United States Presidential Unit Citation for extraordinary heroism against hostile forces during the Tet Offensive, making them one of only a few non-U.S. military units to receive the highest U.S. military honor awarded at the unit level.{{cite web|url=https://www.apd.army.mil/pdffiles/go7124.pdf |title=3d Armored Cavalry Squadron (ARVN) earned Presidential Unit Citation (United States) for extraordinary heroism |access-date=2010-06-11 |url-status=live |archive-url=https://web.archive.org/web/20110716142800/http://www.apd.army.mil/pdffiles/go7124.pdf |archive-date=2011-07-16}}

South Vietnamese National Police chief General Nguyễn Ngọc Loan is captured on film executing a VC prisoner by American photographer Eddie Adams. The Pulitzer Prize-winning photograph becomes yet another rallying point for anti-war protesters.{{cite web|url=http://www.famouspictures.org/vietnam-execution/|title=Vietnam Execution|publisher=Famous Pictures Magazine|access-date=5 March 2010|last=Lucas|first= Dean| archive-url= https://web.archive.org/web/20100204083543/http://www.famouspictures.org/mag/index.php?title=Vietnam_Execution| archive-date= 4 February 2010 |url-status= live}}

Former U.S. Vice President Richard M. Nixon announced his candidacy for the Republican Party nomination for President of the United States.{{cite news|title=Nixon Announces Candidacy for Nomination for President|newspaper=Chicago Tribune|date=2 February 1968|page=1}}

;2 February

Deputy U.S. Secretary of Defense Paul H. Nitze inaugurated a program to curtail the growing use of marijuana among U.S. troops fighting in Vietnam.{{cite book|last=Hammond|first=William|title=Public Affairs: The Military and the Media, 1968–1973|publisher=U.S. Government Printing Office|year=1996|url=https://history.army.mil/html/books/091/91-2/index.html|archive-url=https://web.archive.org/web/20120913060001/http://www.history.army.mil/html/books/091/91-2/index.html|url-status=dead|archive-date=September 13, 2012}}{{PD-notice}}{{rp|183}}

;5–17 February

Operation Tran Hung Dao was the ARVN 1st, 3rd, 6th, 8th and 11th Airborne Brigades, VNMC 1st, 2nd, 3rd, 4th & 6th Brigades, 30th, 33rd, 35th, 38th & 41st Ranger Battalions, 3rd Battalion, 7th Infantry Regiment and 199th Infantry Brigade operation to defend the Saigon area during the Tet Offensive. The operation resulted in 953 PAVN/VC killed.

;6–7 February

File:Lang Vei PT-76 destroyed.jpg

The Battle of Lang Vei was fought on the night of 6 February 1968, between elements of the PAVN, supported by PT-76 light tanks and the United States-led Detachment A-101, 5th Special Forces Group.

;7 February

International reporters arrive at the embattled city of Bến Tre in South Vietnam. Peter Arnett, then of the Associated Press, writes a dispatch quoting an unnamed US major as saying, "It became necessary to destroy the town to save it."{{cite news|title=Major Describes Move|newspaper=The New York Times|date=8 February 1968|url=https://www.nytimes.com/1968/02/08/archives/major-describes-move.html}}

In a telephone conversation with General Westmoreland, Chairman of the Joint Chiefs of Staff General Earle Wheeler advised that the U.S. government "is not prepared to accept a defeat in South Vietnam... In summary... if you need more troops, ask for them."{{rp|153}}

;8–9 February

In the Battle of Lo Giang the U.S. 1st Marine Division and elements of the U.S. 23rd Infantry Division defeated an attack by the PAVN 2nd Division on Da Nang Air Base. The battle resulted in 286 PAVN and 18 U.S. killed.{{rp|163}}

;10 February – 10 March

Operation Hop Tac I was a road security operation by the U.S. 9th Infantry Division along Route 4 in Dinh Tuong Province. The operation resulted in 345 VC and 92 U.S. killed.{{rp|374–7}}

;12 February

In the Phong Nhị and Phong Nhất massacre the South Korean 2nd Marine Brigade killed 69–79 South Vietnamese civilians in Phong Nhị and Phong Nhất villages, Điện Bàn District.{{rp|614}}

;12 February – 3 March

Operation Coronado XI was conducted by the MRF and ARVN forces to secure Cần Thơ in the aftermath of the Tet Offensive. The operation resulted in 297 VC killed.{{rp|379}}

;13 February

A Gallup poll indicated that 50 percent of the American public disapproved of Johnson's handling of the war, 35 percent approved and the rest were undecided.{{cite book|last=Oberdorfer|first=Don|title=Tet!: The Turning Point in the Vietnam War|publisher=The Johns Hopkins University Press|year=1971|isbn=0801867037}}{{rp|346}}

;14-5 February

File:NARA photo 111-CCV-619-CC46215.jpg

The 3rd Brigade, 82nd Airborne Division begins deploying to South Vietnam arriving at Chu Lai Base Area.{{rp|379}}

;14–21 February

The 27th Marine Regiment landed at Da Nang.{{rp|227–9}}

;16 February

North Vietnam released three American prisoners of war, the first of nine, to the custody of peace activists Daniel Berrigan and Howard Zinn.{{cite news|title=North Vietnam Frees Three U.S. Pilots|newspaper=St. Louis Post-Dispatch|date=16 February 1968|page=1}} As part of the propaganda event, the POWs each "expressed their thanks to their captors for the humane and lenient treatment" that they had received, and "expressed remorse over the war". All but one of the nine met the order of release approved by the senior ranking officers (SROs) in each POW camp ("sick and injured first, then enlisted personnel and the remaining officers by order of shoot-down". The exception would be a Navy seaman who was given permission by his superiors to accept release because he had memorized the names of all his fellow prisoners of war.{{cite book|last=Wiest|first=Andrew|title=New Perspectives on the Vietnam War: Re-examining the Culture and History of a Generation|publisher=Routledge|year=2009|page=179}}

The Selective Service System revised its rules for deferments and exemptions from the draft, allowing the induction of most graduate students who were pursuing a master's degree, a decision that affected 600,000 men. Students in medical school, dental school, or other health field remained exempt, as did those in a theological seminary who planned on "going into ministry".{{cite news|title=Cut Draft Deferments – Graduate Students Hit Hard by Change|newspaper=Chicago Tribune|date=17 February 1968|page=1}}

;16 February to 1 March

Operation Maeng Ho X was an ROK Capital Division search and destroy operation in Bình Định Province. The operation resulted in 664 PAVN/VC killed.

;17 February to 28 March

Operation Tran Hung Dao II was a continuation of Operation Tran Hung Dao I in the Saigon area with slightly reduced forces. The operation resulted in 713 PAVN/VC killed.{{rp|13}}

;18 February

A VC rocket and mortar attack on Tan Son Nhut Air Base destroyed 6 aircraft and damaged 33 others and killed one person.{{cite book|last=Thompson|first=A.W.|title=Project CHECO Southeast Asia Report. The Defense of Saigon|publisher=HQ Pacific Air Force|date=14 December 1968|page=14}}{{PD-notice}}

Between 8,000 and 20,000 people attended an antiwar demonstration in West Berlin. The city government organised a similarly sized counter-demonstration.{{cite book|last=Kurlansky|first=Mark|title=1968 The year that rocked the world|publisher=Vintage|year=2005|isbn=978-0099-429623}}{{rp|152}}

;19 February

A VC rocket attack on Tan Son Nhut Air Base hit the civilian air terminal at Tan Son Nhut Airport killing one person and six further rocket/mortar attacks over this period killed another six people and wounded 151.

;23-6 February

General Wheeler, Major General William E. DePuy and Philip Habib visited South Vietnam. During the visit Wheeler and Westmoreland prepared a reinforcement request for up to 205,000 additional troops to support all possible contingencies in Vietnam.{{rp|158–9}}

;24 February

A VC rocket and mortar attack on Tan Son Nhut Air Base killed four U.S. personnel and wounded 21 and damaged base buildings.

;25 February

The Khmer Rouge launched their first widespread campaign, "The Blow of 25 February", with simultaneous attacks on military installations in Battambang, Takéo, Kampot, Koh Kong, Kompong Chhnang and Kompong Speu and seized rifles and machine guns.{{cite book|last=Kiernan|first=Ben|title=How Pol Pot Came to Power: Colonialism, Nationalism, and Communism in Cambodia, 1930–1975|publisher=Yale University Press|year=1985|isbn=978-0300102628}}{{rp|269}}

PAVN rocket and mortar fire hit Firebase Betty exploding an ammunition bunker and this was followed by a PAVN sapper attack. U.S. losses were three killed and 29 wounded and 21 PAVN killed and one captured.{{cite book|last=Kelley|first=Michael|title=Where we were in Vietnam|publisher=Hellgate Press|year=2002|isbn=978-1555716257|page=52}}

;26 February to 12 September

Operation Houston, a security operation conducted by the U.S. Marines' Task Force X-Ray to reopen and secure Route 1 between Da Nang and Phu Bai Combat Base, results in 702 PAVN/VC killed and 29 captured for the loss of 117 U.S. killed.{{rp|414}}

;27 February

File:Vietnam. Walter Cronkite of CBS interviewing Professor Mai of the University of Hue. - NARA - 532481.tif

Walter Cronkite, reporting after his recent trip to Vietnam for his television special "Who, What, When, Where, Why?" gives a highly critical editorial and urges America to leave Vietnam "...not as victors, but as an honorable people who lived up to their pledge to defend democracy, and did the best they could."{{cite book|last=Arnold|first=James|title=Tet Offensive 1968: turning point in Vietnam|year=1990|publisher=Osprey Publishing|isbn=978-0-85045-960-9|page=88}}

;28 February

General Wheeler briefed President Johnson and his national security team. Wheeler gave the impression that General Westmoreland needed the entire 205,000 troops simply to repel another PAVN/VC offensive and

regain lost ground in South Vietnam. Wheeler portrayed the Tet Offensive as coming close to success in many places, with the Allies' victory margin "very very small indeed." He predicted that the PAVN/VC would renew the attack with even greater force. The South Vietnamese forces had held together under the first assault and recouped many of their losses. However, their staying power against a renewed offensive was uncertain. Westmoreland's US forces were in good shape and fighting well, but they were stretched thin and "he does not have a theater reserve." Under these circumstances, "If the enemy synchronizes his

expected major attacks with increased pressure throughout the country, General Westmoreland's margin will be paper thin." The only alternative to the requested reinforcements, would be a decision "to be prepared to give up areas in lieu of more troops," specifically "the 2 northern provinces of South Vietnam." Wheeler's report was a staggering blow to a politically beleaguered administration already shaken by Tet. Johnson and his advisers were dismayed by Wheeler's gloomy assessment of the Vietnam situation, which was in sharp contrast to the more reassuring reports they had been receiving from Westmoreland and Ambassador Bunker. In response Johnson appointed a task force, headed by incoming Secretary of Defense Clark Clifford, to examine afresh the reinforcement and mobilization issue as part of a major review of Vietnam policy and strategy{{rp|159–61}}

;March – November 1968

File:F-111As Combat Lancer 1968.jpg

Project Combat Lancer was the combat testing of six USAF F-111A swing-wing fighter-bombers. F-111A #66-0022 disappeared on 28 March, #66-0017 disappeared on 30 March and #66-0024 crashed on 22 April and this halted combat operations and all aircraft were returned to the U.S. in November.{{cite book |last1=Davies |first1=Peter|last2=Thornborough|first2=Anthony|title=F-111 Aardvark|date=1997|publisher=The Crowood Press Ltd.|isbn=1-86126-079-2 |pages=40, 43}}

;1 March

Three North Vietnamese fishing trawlers were destroyed by the U.S. Navy and South Vietnamese forces while attempting to resupply the VC and a fourth was turned back as part of Operation Market Time. Because the fourth trawler got more than {{convert|12|miles|km}} away from the coast and reached international waters, the U.S. Navy was forbidden from firing on the ship.{{cite web|title=Monthly Historical Summary March 1968 |url=https://www.history.navy.mil/research/archives/digitized-collections/commander-naval-forces-vietnam/monthly-summaries-1968/march.html|publisher=Naval Historical Center, U.S. Navy |access-date=26 June 2017 |author=Commander, Naval Forces Vietnam |pages=Appendix I |date=March 1968 |url-status=dead |archive-url=https://web.archive.org/web/20110508221134/http://www.history.navy.mil/ar/docs/comnavforv/1968/March1968.pdf |archive-date=8 May 2011}}

;1–30 March

Operation Patrick was a security operation conducted by the U.S. 3rd Brigade, 4th Infantry Division in Bình Định Province. The operation resulted in 70 PAVN killed.{{rp|473–4}}

;2 March

While patrolling {{convert|4|mi}} north of Tan Son Nhut Air Base near the small village of Quoi Xuan to locate VC rocket sites, Company C, 4th Battalion, 9th Infantry Regiment walked into an ambush losing 48 killed in just 8 minutes. U.S. forces claimed they killed 20 VC.{{cite news|title=48 U.S. soldiers killed in ambush on edge of Saigon|author=Joseph B. Treaster|newspaper=The New York Times|date=4 March 1968|url=http://timesmachine.nytimes.com/timesmachine/1968/03/04/77078345.html|page=1}}

;3–6 March

In the Battle of Tam Kỳ the 1st Squadron, 1st Cavalry Regiment and Company A, 3rd Battalion, 23rd Infantry Regiment engaged the PAVN 3rd Regiment, 3rd Division The battle resulted in 436 PAVN killed.{{rp|484}}

;4 March

A USAF C-123 was shot down by PAVN anti-aircraft fire near Khe Sanh killing all 44 persons on board.{{cite web|url=http://aviation-safety.net/database/record.php?id=19680306-1 |title=Aircraft accident Fairchild C-123K Provider 54-0590 Khe Sanh|work=Aviation Safety Network|access-date=20 August 2020}}

The "Clifford Committee" proposed the immediate deployment of about 22,000 reinforcements to South Vietnam, which could be done from existing resources. A decision on deploying the rest of the 205,000 should be deferred, contingent upon a "week-by-week" review of the situation in South Vietnam, effectively killing the request.{{rp|163}}

;6–10 March

Operation Rock was a 3rd Battalion, 7th Marines sweep on the peninsula formed by the Vu Gia and Thu Bồn Rivers, the so-called "Arizona Territory" northwest of An Hoa Combat Base. the operation resulted in 35 PAVN and three Marines killed.{{rp|248}}

;7 March – 7 August

File:Assault Air-Cushion Vehicle during Operation Truong Cong Dinh, June 1968.jpg

Operation Truong Cong Dinh was a security operation to reestablish South Vietnamese control over the northern Mekong Delta conducted by the U.S. 9th Infantry Division, the MRF and the ARVN 7th Division. The operation resulted in 343 VC and 51 U.S. killed.{{rp|472–3}}

;10 March

Signed by President Ho Chi Minh four months earlier, a decree took effect in North Vietnam outlawing local opposition to the nation's conduct of the war. A long list of "counterrevolutionary" crimes was subject to punishments ranging from brief detention, to life in prison or the death penalty.{{cite book|last=Wirtz|first=James|title=The Tet Offensive: Intelligence Failure in War|publisher=Cornell University Press|year=1994|isbn=978-0801424861|pages=69–70}}

The New York Times published details of the 205,000-man reinforcement request and Johnson administration policy debates denouncing the proposal as "suicidal escalation" and called for abandonment of this "bankrupt policy." In the Senate, Democrats and Republicans alike condemned the troop request as a disastrous and futile escalation of the war.{{rp|165}}

;10–11 March

The Battle of Lima Site 85 was a battle for control of a secret radar site at Phou Pha Thi, Laos. The U.S. lost 13 killed and the RLA and Thai forces lost 42 killed, PAVN losses are unknown.{{cite book|last=Kelly|first=Orr|title=From a dark sky: the story of U.S. Air Force Special Operations|edition=1996|year=1996|publisher=Presidio|isbn=978-0-89141-520-6|url-access=registration|url=https://archive.org/details/fromdarkskystory00kell|page=191}}

;11 March - 7 April

Operation Quyet Thang was a U.S./ARVN security operation to reestablish South Vietnamese control over the areas immediately around Saigon in the aftermath of the Tet Offensive. 2,658 VC were killed and 427 captured.{{rp|464}}

;12 March

President Johnson barely edged out antiwar candidate Eugene McCarthy in the New Hampshire Democratic primary, the opening event in nominations for the 1968 U.S. presidential election. The vote highlighted deep divisions in the country, and the party, over the war, and would demonstrate Johnson's increasing unpopularity. Johnson received 49.6% of the votes cast, but McCarthy who had campaigned on a platform of ending U.S. involvement in Vietnam got 41.9% despite being relatively unknown outside of his home state.{{cite news|title=LBJ Gets 50% In N.H., 41% For McCarthy|newspaper=Pittsburgh Post-Gazette|date=13 March 1968|page=1}}

;12–26 March

Operation Worth was a 1st Battalion, 7th Marines, 2nd Battalion, 7th Marines and 3rd Squadron, 5th Cavalry Regiment search and destroy operation 24 km northwest of Da Nang. The operation resulted in 160 PAVN and 27 U.S. killed.{{rp|248}}

;14 March

After a run on gold buying in Europe, the London gold market closes at the request of the U.S. The U.S. Federal Reserve raises the discount rate to 5% to strengthen the United States dollar and reduce inflation.{{rp|349}}

;14–20 March

Operation Ford was a 2nd Battalion, 3rd Marines and 1st Battalion, 1st Marines sweep of the Phu Thu Peninsula east of Phu Bai Combat Base to engage the VC 804th Main Force Battalion. The operation resulted in 145 VC and 14 Marines killed.{{rp|249}}

;16 March

File:MyLai Haeberle P33 BodiesNearBurningHouse.jpg

US troops from C Company, 1st Battalion, 20th Infantry Regiment, 11th Brigade and B Company, 4th Battalion, 3rd Infantry Regiment, 23rd Infantry Division carry out the My Lai Massacre killing more than 500 Vietnamese civilians from infants to the elderly. The event would remain concealed for more than a year.{{cite book|last1=Olson|first1=James Stuart|last2=Roberts|first2=Randy|title = My Lai: a brief history with documents|year=1998|publisher=Palgrave Macmillan|isbn= 978-0-312-17767-6|page=162}}

;17 March

An antiwar demonstration outside the U.S. Embassy in London's Grosvenor Square turned violent; 91 people were injured and 200 demonstrators arrested.{{cite news|title=London Police Battle Mob at U.S. Embassy|newspaper=Pittsburgh Post-Gazette|date=18 March 1968|page=1}}

;17 March to 30 July

Operation Duong Cua Dan/Operation People's Road was a U.S. 9th Infantry Division security operation for repair of Route 4 between Cat Lay and Mỹ Tho. The operation resulted in 1,357 PAVN/VC and 93 U.S. killed.

;17 March to 31 January 1969

Operation Walker was a security operation conducted by the U.S. 1st Battalion, 503rd Infantry Regiment, 173rd Airborne Brigade in Bình Định Province. The operation resulted in 272 PAVN/VC and 42 U.S. killed.{{cite web|url=https://apps.dtic.mil/dtic/tr/fulltext/u2/a955261.pdf|archive-url=https://web.archive.org/web/20200226032528/https://apps.dtic.mil/dtic/tr/fulltext/u2/a955261.pdf|url-status=live|archive-date=February 26, 2020|title=United States Military Assistance Command, Vietnam Command History 1969 Volume III|publisher=Headquarters United States Military Assistance Command, Vietnam|date=30 April 1970|access-date=5 July 2020}}{{PD-notice}}{{rp|L-3}}

;18 March – 17 May

File:NARA photo 111-CCV-619-CC48217.jpg

Operation Carentan and Operation Carentan II were security operations conducted by the U.S. 1st and 2nd Brigades, 101st Airborne Division and the 3rd Brigade, 82nd Airborne Division in Thừa Thiên Province. The operations resulted in 2,320 PAVN and 214 U.S. killed.{{rp|506}}

;24 March

Generals Westmoreland and Wheeler met at Clark Air Base in the Philippines. Wheeler advised Westmoreland that a major reinforcement and expansion of ground operations were out of the question. Westmoreland advised that in the light of the improved situation after the defeat of the Tet Offensive and the strong showing of the South Vietnamese forces, further reinforcements beyond those already committed would not be required.{{rp|166}}

;25 March

A Harris Poll found that 60% of Americans regarded the Tet Offensive as a defeat of U.S. objectives and basic support for the war had dropped from 74 to 54 percent.{{cite book|last=Willbanks|first=James|title=Vietnam War Almanac: An In-Depth Guide to the Most Controversial Conflict in American History|publisher=Simon and Schuster|year=2013|isbn=9781626365285}}{{rp|256}}

;26 March

President Johnson met with his group of advisers, led by Secretary of State Dean Rusk and Secretary of Defense Clifford, who had come to be known as "The Wise Men". After long supporting and encouraging Johnson's conduct of the war, a majority of the group informed him that "an American military solution in Vietnam was no longer attainable" and that he should take steps to disengage the U.S. from further participation. Another author would note that former Secretary of State Dean Acheson told Johnson "the financial and social costs of the struggle... would be hard for the United States to sustain" and noted that "The Wise Men's conclusion that the United States had to find a new way out of Vietnam rocked Johnson as nothing else had." {{cite book|last=Anderson|first=David|title=The Columbia Guide to the Vietnam War|publisher=Columbia University Press|year=2004|isbn=978-0231114936 |page=176}}

The PAVN 7th Battalion, 209th Regiment attacked Firebase 14 on Hill 995 {{convert|19|mi}} west of Kontum defended by units of the 4th Brigade, 4th Infantry Division. The PAVN lost 135 killed and the U.S. 19 killed.{{cite news|newspaper=The New York Times|title=Foe penetrates U.S. perimeter west of Kontum|date=27 March 1968|page=1}}

;30 March

A Gallup Poll shows that 63% of Americans disapprove of Johnson's handling of the war.{{rp|258}}

;30 March – 31 January 1969

Operation Cochise Green was a security and pacification operation conducted by the 173rd Airborne Brigade in Bình Định Province. The operation resulted in 929 PAVN/VC killed and 25 captured and 114 U.S. killed.{{rp|620–1}}

;31 March

President Johnson addresses the nation, announcing steps to limit the war in Vietnam and reporting his decision not to seek reelection. The speech announces the first in a series of limitations on US bombing, promising to halt these activities above the 20th parallel north.{{cite book|last=Hamilton-Merritt|first=Jane|title=Tragic mountains: the Hmong, the Americans, and the secret wars for Laos, 1942–1992|year=1993|publisher=Indiana University Press|isbn= 978-0-253-20756-2|page=187}}

Secretary of Defense Clark Clifford gets the President to authorize 24,500 more troops on an emergency basis, raising authorized strength to the Vietnam War's peak of 549,500, a figure never reached.

;1 April

U.S. aircraft ceased attacking North Vietnam north of the 20th parallel, an area which included Hanoi and Haiphong. Missions would continue for the remainder of the country, between the 17th parallel and 20th parallel.{{cite book|last=Lavalle|first=A.J.C.|title=The Vietnamese Air Force, 1951–1975: An Analysis of Its Role in Combat and Fourteen Hours at Koh Tang|publisher=U.S. Government Printing Office|year=1975|url=https://media.defense.gov/2010/Oct/13/2001330009/-1/-1/0/AFD-101013-043.pdf|page=53}}

;1–14 April

File:NARA photo 111-CCV-557-CC47875.jpg

In Operation Pegasus the 1st Cavalry Division relieved the Marines at Khe Sanh.{{rp|284}}

;2 April

North Vietnam's official government radio station broadcast that "The North Vietnamese government declares its readiness to send its representatives to make contact with U.S. representatives to decide with the U.S. side the unconditional cessation of bombing and all other war acts... so that talks could begin."{{cite news|title=North Viet 'Willing To Talk' About Conditions For Peace— Hanoi Seeks Complete Halt Of Bombing|newspaper=Pittsburgh Press|date=3 April 1968|page=1}}

;8 April

Captain Max Cleland serving with the 2nd Battalion, 12th Cavalry Regiment was seriously wounded by a grenade blast near Khe Sanh losing both legs and his right forearm.{{cite news|newspaper=The Washington Post|author=Harrison Smith|title=Max Cleland, Vietnam War veteran who led VA and served in Senate, dies at 79 |url=https://www.washingtonpost.com/local/obituaries/max-cleland-dead/2021/11/09/cb0afb9c-7520-11eb-8115-9ad5e9c02117_story.html|access-date=9 November 2021|date=9 November 2021}}

;8–19 April

Operation Norfolk Victory was a 1st Battalion, 20th Infantry Regiment clear and search operation in Nghĩa Hành District, Quảng Ngãi Province. the operation resulted in 43 PAVN/VC and five U.S. killed.

;8 April to 31 May

Operation Toan Thang I was a US and ARVN operation conducted between 8 April 1968 and 31 May 1968. Toan Thang, or "Complete Victory", was part of a reaction to the Tet Offensive designed to put pressure on the PAVN/VC. The PAVN/VC lost 7,645 killed and 1,708 captured for the loss of 762 ARVN and 564 U.S. killed.{{rp|12}}

;8 April to 11 November

Operation Burlington Trail was a security operation conducted by the U.S. 198th Infantry Brigade in Quảng Nam Province. The operation resulted in 1,931 VC and 129 U.S. killed.{{rp|611}}

;10 April

A 250-man PAVN force attempted to block Route 19 west of Landing Zone Schueller. A reaction force from the 1st Battalion, 69th Armor Regiment at Schueller was called forward and quickly overwhelmed the PAVN ambushers some of whom retreated to a nearby hill where they were assaulted by the 1st Battalion, 503rd Infantry Regiment. The engagement resulted in 1 U.S. and 40 PAVN killed.{{cite web|url=http://www.rjsmith.com/ivy_leaf_article.html|title=Ivy Leaf Article, 1st Bn 69th Armor|publisher=4th Infantry Division|date=5 May 1968|access-date=15 July 2020}}

The Anderson Platoon won the 1967 Academy Award for Best Documentary Feature. The film by Pierre Schoendoerffer followed a platoon of the 1st Cavalry Division in September and October 1966.{{cite news|title=Pierre Schoendoerffer, French Filmmaker, Dies at 83|newspaper=The New York Times|date=14 March 2012|url=https://www.nytimes.com/2012/03/15/movies/pierre-schoendoerffer-dies-at-83-made-films-about-indochina-war.html}}

;10-4 April

Operation Jasper Square was a 3rd Battalion, 7th Marines operation on Go Noi Island, Quảng Nam Province. The operation resulted in 54 PAVN/VC and six Marines killed.{{rp|250}}

;13 April

In an unnamed operation east of Huế, the 1st Battalion, 27th Marines killed 60 PAVN/VC for the loss of 24 Marines.{{rp|252}}

;15 April – 28 February 1969

File:2.4 Marines offload from HMM-262 CH-46s near Lang Vei.jpg

Following the relief of Khe Sanh the 3rd Marine Division began Operation Scotland II in the area round Khe Sanh. The operation continued until February 28, 1969, and results in 3,304 PAVN killed and 435 Marines killed.{{rp|289}}{{cite book|last=Smith|first=Charles|title=U.S. Marines in Vietnam: High Mobility and Standdown 1969|publisher=History and Museums Division, Headquarters, U.S. Marine Corps|url=https://archive.org/details/HighMobilityAndStanddown|year=1988|isbn=9781494287627|page=[https://archive.org/details/HighMobilityAndStanddown/page/n37 23]}}

;19-26 April

Operation Baxter Garden was a harvest security operation on the Phu Thu peninsula by the 2nd Battalion, 5th Marines supported by two ARVN battalions. The operation resulted in 55 PAVN/VC and 13 Marines killed.{{rp|252}}

;19 April – 17 May

Operation Delaware was a military operation in the A Shau Valley, an important PAVN logistics corridor and base area. American and South Vietnamese had not been present in the area since the Battle of A Shau, when a Special Forces camp located there was overrun. The PAVN lost 869 killed while the U.S. lost 142 killed and 47 missing and the ARVN lost 26 killed.{{rp|12}}

;24 April

The positions of the 1st Battalion, 26th Marines at Wunder Beach were mistakenly hit by 11–15 rounds of 5" naval gunfire from {{USS|Mullany|DD-528|6}} killing two Marines.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1201/1201060215.pdf|title=Command Chronology for period 1 April to 30 April 1968|publisher=Headquarters 1st Battalion, 26th Marines|date=11 May 1968|access-date=15 July 2020|page=63}}{{PD-notice}}

File:2nd Battalion, 4th Marines into Dai Do.jpg

;27 April

U.S. Vice President Hubert Humphrey formally announced that he would seek the Democratic Party nomination to run for President of the United States.{{cite news|title=HHH Throws Hat Into Political Ring|newspaper=Hartford (CT) Courant|date=28 April 1968|page=1}}

;30 April – 3 May

In the Battle of Dai Do the 2nd Battalion, 4th Marines and the 1st Battalion, 3rd Marines, fight a pitched, hand-to-hand battle with two full-strength battalions of the PAVN 320th Division. The Marines suffer 50% casualties with 81 killed, while the PAVN lose more than 600 men killed. "E" Co & "F" Co Commanders are each awarded the Medal of Honor, while 2/4th Marines Commander, Lieutenant Colonel Weise is awarded the Navy Cross.{{rp|303–4}}

;1 May – 20 November

Operation Kudzu was a 9th Infantry Division reconnaissance and security operation around Đồng Tâm Base Camp. The operation resulted in 187 PAVN/VC killed and 41 captured and 28 U.S. killed.{{rp|260}}

;3 May

The U.S. and North Vietnam agreed that their representatives would meet in Paris on 10 May to begin the first discussions on the format for peace talks to end the war.{{cite news|title=U.S., Hanoi agree on Paris – Initial Talks May Begin Next Friday|newspaper=Pittsburgh Press|date=3 May 1968|page=1}}

;3–10 May

In the deadliest week of the war for American forces, 562 U.S. troops are killed.{{rp|260}}

;4 May – 24 August

Operation Allen Brook was a 1st Marine Division security and pacification operation on Go Noi Island. The operation resulted in 917 PAVN/VC killed and 11 captured and 172 Marines killed.{{rp|343}}

;5 May

File:Fighting in the French Cemetery, May Offensive, 6 May 1968.jpg

May Offensive was launched in the early morning hours of 4 May, in which PAVN/VC units initiated PHASE II of the Tet Offensive of 1968 (also known as the May Offensive, "Little Tet", and "Mini-Tet") by striking 119 targets throughout South Vietnam, including Saigon.{{cite book|last=Nolan|first=Keith|author-link= Keith W. Nolan|title=House to House: Playing the Enemy's Game in Saigon, May 1968|year=2006|publisher=Zenith Imprint|isbn= 978-0-7603-2330-4|page=21}} The PAVN/VC lost over 24,000 killed and 2,000 captured while the U.S. lost 2,169 killed and the ARVN lost 2,054 killed.{{rp|589–90}} The offensive caused extensive destruction in west and south Saigon.{{rp|583}}

After midnight the PAVN/VC shelled Bien Hoa Air Base for 3 hours and then shelled it again at dawn, wounding 11 USAF personnel and damaging 13 aircraft, 5 trucks and 3 50,000-gallon rubber fuel bladders.{{cite book|last=Nalty|first=Bernard|title=The United States Air Force in Southeast Asia: The War in South Vietnam Air War over South Vietnam 1968–1975|publisher=Air Force History and Museums Program|year=2000|url=http://www.afhso.af.mil/shared/media/document/AFD-100924-004.pdf|archive-url=https://web.archive.org/web/20130216072651/http://www.afhso.af.mil/shared/media/document/AFD-100924-004.pdf|url-status=dead|archive-date=February 16, 2013|isbn=9781478118640}}{{PD-notice}}{{rp|71}}

Landing Zone Peanuts located approximately 5 km southwest of Khe Sanh Combat Base and occupied by Companies A and B, 1st Battalion, 5th Cavalry Regiment and Company A, 1st Battalion, 77th Artillery Regiment was hit by 120 mm mortar rounds and B-40 rockets followed by a PAVN sapper attack. The attack was repulsed with 11 U.S. and 32 PAVN killed.{{cite web|url=http://www.dtic.mil/dtic/tr/fulltext/u2/393815.pdf|archive-url=https://web.archive.org/web/20170202042341/http://www.dtic.mil/dtic/tr/fulltext/u2/393815.pdf|url-status=dead|archive-date=February 2, 2017|title=Operational Report – Lessons Learned, Headquarters, 1st Air Cavalry Division Artillery, Period Ending 31 July 1968|publisher=Department of the Army|date=5 November 1968|access-date=15 July 2020|page=5}}

;5–25 May

In the Battle of Landing Zone Center the PAVN lost 365 killed in its attacks on a U.S. base in Quảng Tín Province.{{rp|542}}

;6 May

United Press International photographer Toshio Sakai wins the Pulitzer Prize for Feature Photography for his photo "Dreams of Better Times".{{cite web|title=Toshio Sakai|url=https://www.pulitzer.org/winners/toshio-sakai|publisher=pulitzer.org|access-date=12 July 2020}}

;9–16 May

Operation Concordia Square/Lam Son 224 was a 2nd Brigade, 1st Cavalry Division operation in Quảng Trị Province. The operation resulted in 349 PAVN and 19 U.S. killed.

;10 May

Representatives of the U.S. and North Vietnam met at Paris for the first time to discuss peace talks and agreed that discussions would take place at the International Conference Center of the French Foreign Ministry, located in the former Hotel Majestic. W. Averell Harriman led the American delegation with the assistance of Cyrus Vance, and former North Vietnamese foreign minister Xuan Thuy was assisted by Colonel Ha Van Lau.{{cite news|title=U.S., Hanoi Map Talks|newspaper=Pittsburgh Press|date=10 May 1968|page=1}}

;10–12 May

File:Kham Duc Evacuation during Vietnam War May 12th 1968.jpg]]

The Battle of Kham Duc was the struggle for the United States Army Special Forces camp located in Quảng Tín Province. The camp was occupied by the 1st Special Forces detachment consisting of U.S. and South Vietnamese special forces, as well as Montagnard irregulars.{{cite book|last=Davies|first=Bruce|title=The Battle at Ngok Tavak: a bloody defeat in South Vietnam, 1968|year=2008|publisher=Allen & Unwin|isbn= 978-1-74175-064-5|page=169}} A USAF C-130B was shot down after takeoff from the base killing all 155 on board.{{cite web|url=https://aviation-safety.net/database/record.php?id=19680512-1|title=Aircraft accident Lockheed C-130B Hercules|publisher=Aviation Safety Network|access-date=20 August 2020}}

;12 May – 6 June

The Battle of Coral–Balmoral was a series of actions fought between 1 ATF and PAVN/VC forces, north-east of Saigon. The battle resulted in 267 PAVN/VC killed and 11 captured and 25 Australians killed.{{cite book|last=McAulay|first=Lex|title=The Battle of Coral: Vietnam fire support bases Coral and Balmoral, May 1968|year=1989|publisher=Arrow Australia|isbn= 978-0-09-169721-1|page=777}}

;13 May

The first US and North Vietnamese delegations meet at the Paris peace talks to discuss American withdrawal.{{cite book|last=Hixson|first=Walter|title=Leadership and diplomacy in the Vietnam War|year=2000|publisher=Taylor & Francis|isbn=978-0-8153-3533-7}}{{rp|274}}

;13/4 May

The U.S. radio relay station on Nui Ba Den was attacked and overrun by the VC before they were driven off by helicopter gunship and artillery fire. The attack killed 24 U.S. and 25 VC.{{cite book|last=Long|first=Lonnie M.|title = Unlikely Warriors: The Army Security Agency's Secret War in Vietnam 1961–1973|year=2013|publisher =iUniverse|isbn= 978-1475990584|pages=216–227}}

;17 May

A group of anti-war demonstrators, later dubbed the Catonsville Nine, entered the Selective Service offices in Catonsville, Maryland, took draft records, and burned them with homemade napalm.{{cite news|title=9 Invade Office, Burn Draft Records|newspaper=Pittsburgh Press|date=17 May 1968|page=9}}

;17 May – 3 November

Operation Jeb Stuart III was conducted by the U.S. 1st Cavalry Division to attack PAVN base areas in Quảng Trị and Thừa Thiên Provinces. The operation resulted in 2,014 PAVN killed and 251 captured and 222 U.S. killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010769.pdf|title=Headquarters MACV Monthly Summary November 1968|publisher=Headquarters United States Military Assistance Command, Vietnam|date=31 January 1969|access-date=5 July 2020|page=10}}{{PD-notice}}

;17 May – 28 February 1969

Operation Nevada Eagle was a security operation conducted by the 101st Airborne Division and 3rd Brigade, 82nd Airborne Division in Thừa Thiên Province. The operation resulted in 3,299 PAVN killed and 853 captured and U.S. 175 killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010792.pdf|title=Monthly Summary February 1969|publisher=Headquarters United States Military Assistance Command, Vietnam|date=22 June 1969|access-date=5 July 2020|page=56}}{{PD-notice}}

;18 May

Nguyen Van Loc resigned as Prime Minister of South Vietnam, along with his entire cabinet.{{cite news|title=Cabinet Resigns In Saigon Shakeup|newspaper=Pittsburgh Press|date=18 May 1968|page=1}}

;19 May – 23 October

File:A371543.tif

Operation Mameluke Thrust was a 1st Marine Division spoiling attack into the valleys west of Danang and around Thường Ðức Camp. The operation resulted in 2,728 PAVN killed and 47 captured and U.S. losses of 269 killed.{{rp|726}}

;23 May

The U.S. Navy guided-missile cruiser {{USS|Long Beach|CGN-9|6}}, operating off of the coast of North Vietnam shot down a Vietnam People's Air Force (VPAF) jet fighter with a RIM-8 Talos missile fired from a distance of {{convert|65|nmi}} making it the first combat kill by a naval surface to air missile.{{cite book|last1=Polmar|first1=Norman|last2=Marolda|first2=Edward|title=Naval Air War The Rolling Thunder Campaign|publisher=Naval History and Heritage Command|year=2015|url=https://www.history.navy.mil/research/publications/publications-by-subject/naval-air-war.html|isbn=978-0945274827}}{{PD-notice}}{{rp|39}}

;24 May to 12 June

Operation Mathews was a 1st Brigade, 4th Infantry Division and 3rd Brigade, 101st Airborne Division search and destroy operation in Kon Tum Province. The operation resulted in 352 PAVN and 69 U.S. killed.

;25 May to 10 June

File:Vietnamese Rangers relax behind VC bodies, Cholon, May Offensive, 6 June 1968.jpg

The second phase of the May Offensive attacks on Saigon began. The VC lost an estimated 600 killed and another 107 captured in the attacks, while the South Vietnamese lost 42 killed.{{rp|585–9}}

;26–30 May

Sustained PAVN mortar and rocket fire hits U.S. 1st Battalion, 14th Infantry Regiment at Landing Zone Brillo Pad followed by a ground assault which results in U.S. and 41 PAVN killed.{{cite web|url=http://www.dtic.mil/dtic/tr/fulltext/u2/394812.pdf|archive-url=https://web.archive.org/web/20141229133632/http://www.dtic.mil/dtic/tr/fulltext/u2/394812.pdf|url-status=dead|archive-date=December 29, 2014|title=Operational Report – Lessons Learned, Headquarters 4th Infantry Division, Period ending 31 July 1968|date=23 December 1968|access-date=15 July 2020|page=3}}

;27 May

Trần Văn Hương, a former schoolteacher, was sworn in as the new Prime Minister of South Vietnam.{{cite news|title=New Premier Takes Office in Saigon|newspaper=Pittsburgh Post-Gazette|date=27 May 1968|page=1}}

;29 May

A VC unit stopped all traffic on Route 155 in Vĩnh Bình Province; 50 civilians were kidnapped, including a Protestant minister; two buses and 28 three-wheeled taxis were burned.{{cite book|last=Pike|first=Douglas|title=The Vietcong Strategy of Terror|publisher=US Mission, Saigon|year=1970|url= https://www.vietnam.ttu.edu/reports/images.php?img=/images/231/2311404008a.pdf|pages=93–115}}{{PD-notice}}

;May to August

The USAF 8th Tactical Fighter Wing conducted combat evaluations of the first generation of Laser-guided bombs: the BOLT-117 and the Paveway 1. The first combat drop was made using BOLT-117s on 23 May.{{cite book|last=Anderegg|first=C.|title=Sierra Hotel: flying Air Force fighters in the decade after Vietnam|publisher=Air Force History and Museums Program|year=2001|url=https://media.defense.gov/2010/Sep/29/2001329786/-1/-1/0/AFD-100929-043.pdf|archive-url=https://web.archive.org/web/20190301182349/https://media.defense.gov/2010/Sep/29/2001329786/-1/-1/0/AFD-100929-043.pdf|url-status=dead|archive-date=March 1, 2019|isbn=9781508674009|page=124}}{{PD-notice}} The Paveway-1 was found to be superior achieving a circular error probability of {{convert|20|feet}} with one in every four bombs scoring a direct hit.{{cite book|last=Poole|first=Walter|title=Adapting to Flexible Response, 1960–1968|publisher=Historical Office, Office of the Secretary of Defense|year=2013|isbn=|pages=352–3}}{{cite magazine|magazine=Air Force Magazine|title=The Emergence of Smart Bombs|author=John Correll|date=1 March 2010|url=https://www.airforcemag.com/article/0310bombs/}}

;1 June - 16 February 1969

Operation Toan Thang II was designed to keep pressure on PAVN/VC forces in III Corps, the PAVN/VC lost 25,428 killed and 10,724 captured while the U.S. lost 1,798 killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010791.pdf|title=Headquarters MACV Monthly Summary February 1969|publisher=Headquarters United States Military Assistance Command, Vietnam|date=22 June 1969|access-date=26 June 2020}}{{PD-notice}}{{rp|31}}

;2 June

A gunship from the 120th Assault Helicopter Company fired a 2.75-inch rocket that struck a building that contained the forward command post of the ARVN 30th Ranger Battalion. The blast killed 6 high-ranking South Vietnamese officials allied to Prime Minister Kỳ, including Saigon Police chief Lieutenant Colonel Nguyen Van Luan.{{cite book|last=Thompson|first=A.W.|title=The Defense of Saigon|publisher=Headquarters Pacific Air Force|date=14 December 1968}}{{PD-notice}}{{rp|35–6}}

;2–19 June

Operation Robin was a 3rd Marine Division operation into the "Vietnam Salient" of Quảng Trị Province. The operation resulted in 635 PAVN killed and 48 captured and Marine losses of 65+ killed.{{rp|324}}

;10 June

File:CWAbrams.jpg

General Creighton Abrams assumes command of MACV from General Westmoreland who is promoted to Chief of Staff of the United States Army.

South Vietnamese Minister of Information Tôn Thất Thiện described the impact of the U.S. presence on South Vietnamese life as "devastating" and "disintegrating."{{cite news|newspaper=the New York Times|title=U.S. impact on Vietnam life called devastating|date=11 June 1968|page=5}}

;12 June

A VC rocket and mortar attack on Tan Son Nhut Air Base destroyed two aircraft and killed one USAF airman.

;16-7 June

USAF jets mistakenly sank PCF-19 killing five U.S. Navy crewmen and attacked the {{USCGC|Point Dume|WPB-82325|6}}, {{USS|Boston|CA-69|6}} and {{HMAS|Hobart|D 39|6}} near Tiger Island killing two Royal Australian Navy crewmen.{{cite book |last=Grey|first=Jeffrey|title=Up Top: the Royal Australian Navy and Southeast Asian conflicts, 1955–1972|year=1998|series=The Official History of Australia's Involvement in Southeast Asian Conflicts 1948–1975|publisher=Allen & Unwin|isbn=1-86448-290-7|pages=175–80}}

;18 June

The South Vietnamese military mobilization law was promulgated. The law lowered the military draft age from 20 to 18 and allowed the government to conscript males between the ages of 18 and 38 for service in either the ARVN or the territorial Regional Force and Popular Forces. The term of service was made indefinite, or as long as the war lasted. In addition, the legislation specified that youths of 17 and men between the ages of 39 and 43 could be conscripted for noncombat military service, and all other males between 16 and 50 were to serve in a new paramilitary organization, the People's Self-Defense Force, a part-time hamlet militia.{{cite book|last=Clarke|first=Jeffrey|title=The U.S. Army in Vietnam Advice and Support: The Final Years, 1965–1973 |publisher=U.S. Army Center of Military History|year=1998|url=https://history.army.mil/banner_images/focus/dr_clarke_ret_comm/the_final_years.pdf|archive-url=https://web.archive.org/web/20170125225653/http://www.history.army.mil/banner_images/focus/dr_clarke_ret_comm/the_final_years.pdf|url-status=dead|archive-date=January 25, 2017|isbn=978-1518612619|page=314}}{{PD-notice}}

152 members of the VC Quyet Thang Regiment surrendered to ARVN forces, the largest communist surrender of the war.

;21 June

U.S. Secretary of State Rusk stated that nearly three months after the U.S. had limited its bombing to below the 17th parallel, infiltration by PAVN troops into South Vietnam had increased to record levels and North Vietnam had started a campaign of indiscriminate rocket attacks into residential areas of Saigon.{{cite news|title=Reds Attack Villagers with Satchel Charges|newspaper=The Lewiston Daily Sun|date=29 June 1968|page=1}}

;22 June

In a complete reversal from previous statements, North Vietnam (through their representative in Budapest) admitted that it had troops stationed and fighting in South Vietnam.{{cite web|url=https://www.cia.gov/library/readingroom/docs/DOC_0005976215.pdf|archive-url=https://web.archive.org/web/20170119235338/https://www.cia.gov/library/readingroom/docs/DOC_0005976215.pdf|url-status=dead|archive-date=January 19, 2017|title=The President's Daily Brief|publisher=Central Intelligence Agency|date=22 June 1968|access-date=5 July 2020}}

;27-8 June

File:Vietnam DMZ.jpg

In the Battle of Binh An the U.S. 3rd Squadron, 5th Cavalry Regiment and Troop D, 1st Squadron, 9th Cavalry Regiment defeated the PAVN K14 Battalion, 812th Regiment. The battle resulted in 233 PAVN killed and 44 captured and three U.S. killed.{{cite book|last=Starry|first=Donn|title=Mounted Combat in Vietnam. Vietnam Studies|publisher=Department of the Army|year=1978|isbn=9781517592288|url=https://history.army.mil/html/books/090/90-17-1/CMH_Pub_90-17-1.pdf|archive-url=https://web.archive.org/web/20150108125912/http://www.history.army.mil/html/books/090/90-17-1/CMH_Pub_90-17-1.pdf|url-status=dead|archive-date=January 8, 2015}}{{PD-notice}}{{rp|147}}

;28-9 June

The VC kill 88 South Vietnamese civilians in Sơn Trà village, Bình Sơn District, Quảng Ngãi Province.{{cite book|title=Congressional Record: Proceedings and Debates of the 90th Congress Second Session, Volume 114, Part 15|publisher=United States Congress|year=1968|url= https://books.google.com/books?id=NXHtiSJ9WcIC&q=%22son+tra%22+massacre&pg=PA20268|page=20268}}

;1 July

The Phoenix Program to identify and neutralize the VC infrastructure, was launched by the CIA and South Vietnamese agencies.{{cite book|last=Summers|title=Vietnam War Almanac|publisher=Facts on File|year=1985|isbn=978-0816010172|page=283}}

;1-8 July

Operation Thor was a U.S. combined arms operation against PAVN positions around, Mũi Lay, North Vietnam. The operation resulted in 125 PAVN killed and 500+ targets destroyed and U.S. losses of one killed and three aircraft shot down.{{rp|548}}

;4 July

A PAVN rocket and mortar attack followed by ground probes against Dầu Tiếng Base Camp resulted in five U.S. and 16 PAVN killed.

;6 July

File:OV-10A Bronco VMO-2 at Da Nang c1970.jpeg

The first OV-10 Broncos arrive at Marble Mountain Air Facility for service with VMO-2.{{rp|520}}

;6–31 July

Operation Pocahontas Forest was a security operation conducted by the U.S. 23rd Infantry Division and the ARVN 2nd Division in the Quế Sơn Valley. The operation resulted in 127 PAVN and 18 U.S. killed.{{rp|611}}

;14–18 July

Clifford visited South Vietnam.{{rp|266}}

;17 July

A U.S. Army Landing Craft Utility (LCU) and its crew of 11 Americans and one South Vietnamese, was seized by Cambodia after veering into the Cambodian side of the Mekong River that marked its border with South Vietnam. Cambodia's leader Prince Norodom Sihanouk, demanded a ransom of 12 bulldozers or tractors for return of the LCU and its men, and refused an American apology.{{cite news|title=Patrol Boat Strays, U. S. Apologizes|newspaper=Cincinnati Enquirer|date=20 July 1968|page=1}} Although treated well during their captivity, the Americans would not be released until December 20.{{cite news|title=Cambodia Frees 11 GIs Held Captive 5 Months|newspaper=LaCrosse (WI) Tribune|date=20 December 1968|page=1}}

;18–20 July

Johnson met Thiệu in Honolulu and reaffirmed the U.S. commitment to defend South Vietnam. Thiệu stated that the South Vietnamese would "continue to assume all the responsibility that the scale of forces of South Vietnam and their equipment will permit."{{cite news|newspaper=The New York Times|title=Text of Johnson-Thieu communique in Hawaii|date=21 July 1968|page=2}}

;22 July

In a briefing with his staff after a visit to South Vietnam, Secretary Clifford stated that: "[We] must get out of there." and that "No way can we terminate the war militarily." He expressed suspicion that the South Vietnamese government "doesn't want war to stop now" as long as the money kept flowing. "Corruption runs through everything." He saw a need to "convey to our representatives in Saigon they [are] seeing it too narrowly, from GVN pt. of view" and that they should "look at it from interest of U.S."{{rp|215}}

;22–31 July

The 1st Brigade, 5th Infantry Division (Mechanized) deployed to South Vietnam.{{rp|578}}

;23 July

USAF Major General Robert F. Worley was killed when his RF-4C Phantom was hit by ground fire and crashed approximately {{convert|65|mi|km}} northwest of Da Nang Air Base.

;26 July

Trương Đình Dzu an unsuccessful candidate in the 1967 Presidential election was sentenced to five years imprisonment by a Special Military Court for proposing the formation of a coalition government to end the war.{{rp|268}}

;28 July

Four VC detonated a 60-pound plastique charge in city room of Chợ Lớn Daily News, the most prominent of city's seven Chinese language newspapers, after ordering workers out of building; the four escaped before police arrived.

;29 July

A VC sapper attack on Tuy Hoa Air Base destroyed two C-130s and damaged a further five C-130s, one F-100 and one C-47.{{cite book|last=Fox|first=Roger|title=Air Base Defense in the Republic of Vietnam 1961–1973|publisher=Office of Air Force History|year=1979|url=http://www.afhso.af.mil/shared/media/document/AFD-100921-023.pdf|isbn=9781410222565|access-date=2020-07-14|archive-date=2016-11-23|archive-url=https://web.archive.org/web/20161123144536/http://www.afhso.af.mil/shared/media/document/AFD-100921-023.pdf|url-status=dead}}{{PD-notice}}{{rp|67}}

;31 July

Admiral John S. McCain Jr. became Commander-in-Chief, Pacific Command (CINCPAC) replacing Admiral U. S. Grant Sharp Jr., his son John S. McCain III, a naval aviator was a prisoner in North Vietnam having been shot down on 26 October 1967.

;2 August – 24 April 1969

Operation Lam Son 245 was a security operation by the ARVN 54th Regiment, 1st Division in Thừa Thiên Province. The operation resulted in 636 PAVN/VC killed.{{rp|268}}

;3 August – 30 November

Operation Quyet Chien was a security operation by U.S. 9th Infantry Division, MRF and the ARVN 7th Division in the Mekong Delta. The operation resulted in 1,571 VC killed and 94 U.S. killed and ten missing.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010769.pdf|title=Headquarters MACV Monthly Summary November 1968|publisher=Headquarters United States Military Assistance Command, Vietnam|date=31 January 1969|access-date=5 July 2020}}{{PD-notice}}{{rp|44}}

;4–20 August

File:UH-1D loaded with supplies at Firebase Berchtesgaden, August 1968.jpg

Operation Somerset Plain was a 1st Brigade, 101st Airborne Division and ARVN 1st Division operation in the A Sầu Valley. The operation resulted in 181 PAVN killed and four captured and seven U.S. and 11 ARVN killed.{{rp|608}}

;5–8 August

The 1968 Republican National Convention took place in Miami Beach, Florida. Richard Nixon and Spiro T. Agnew were selected as the party's candidates for the Presidential Election. Nixon pledged to "bring an honorable end to the war in Vietnam" and to restore "the strength of America so that we shall always negotiate from strength and never from weakness."{{rp|268}}

;10 August

A USAF F-100 Super Sabre accidentally hit Company D, 2nd Battalion, 327th Infantry Regiment in the A Sầu Valley, killing seven and wounding fifty-four men.{{rp|608}}

;15 August

XXIV Corps was activated to control the activities of U.S. Army ground combat units deployed in I Corps.{{rp|269}}

;17 August to 27 September

The Phase III Offensive — also known as the "August Offensive" or the "Third Offensive", was launched by the PAVN/VC. The Offensive followed from the May Offensive and had the similar aim of diverting U.S. forces from urban areas through attacking multiple border towns simultaneously.{{Cite book|last=Ward|first=Geoffrey|url=https://books.google.com/books?id=i4KyDQAAQBAJ|title=The Vietnam War: An Intimate History|publisher=Alfred A. Knopf|year=2017|isbn=9781524733100|location=New York|pages=321}} The operation was a failure; American forces pre-emptively stopped an assault on Danang, and some other attacks failed to materialize. PAVN/VC losses exceed 29,000 and 1,0936 civilians are killed.{{rp|672}}

;19 August

In a speech to the Veterans of Foreign Wars convention, Johnson called on North Vietnam to respond to his 31 March limitation of bombing. He also said that "there are some among us who appear to be searching for a formula which would get us out of Vietnam and Asia on any terms , leaving the people of South Vietnam, Laos and Thailand... to an uncertain fate."{{rp|269}}

A Harris Poll showed that 61% of Americans opposed a bombing halt.{{rp|269}}

;22 August

A PAVN/VC rocket attack on Saigon killed 18 and wounded 59.{{rp|270}}

;22–3 August

A company from the VC R20 Battalion and a sapper platoon infiltrated Forward Operating Base 4, killing 17 Special Forces soldiers (their largest one-day loss of the war) and wounding another 125 Allied soldiers. Thirty-two VC were killed.{{rp|656–7}}

;23–4 August

U.S. forces captured a PAVN regimental headquarters {{convert|12|mi}} south of Huế, killing 176 PAVN, many youths only 15–17 years old, for the loss of seven U.S. killed. Seven anti-aircraft guns and 435 individual weapons were captured.{{cite news|newspaper=The New York Times|title=Enemy headquarters taken|date=31 August 1968|page=5}}

;23-5 August

The PAVN 95C Regiment attempted to overrun Duc Lap Camp. The assault was defeated at a cost of six U.S., one ARVN, 37 CIDG, 20 civilians and over 303 PAVN killed.{{cite book|last=Stanton|first=Shelby|title=Special Forces at War: An Illustrated History, Southeast Asia 1957–1975|publisher=Zenith Press|year=2008|isbn=9780760334492|pages=244–7}}

The Rolling Stones released Street Fighting Man, their most political song to date, inspired in part by the Grosvenor Square demonstration on 17 March which Mick Jagger had attended.{{rp|153}}

;24 August – 9 September

Operation Tien Ho was a security operation in Quang Duc Province conducted by the ARVN 23rd Division. The operation resulted in 1,091 PAVN/VC casualties.{{rp|270}}

;28 August

File:1968 Chicago.gif

U.S. Vice President Humphrey was nominated as the Democratic Party's candidate for president on the first ballot at the 1968 Democratic National Convention in Chicago. Afterward, after different speakers at Chicago's Grant Park addressed a crowd of 15,000 antiwar protesters, a crowd of about 1,500 people marched along Michigan Avenue toward the convention site at the International Amphitheatre where the convention was taking place, protesting Humphrey's nomination. The Chicago police confronted and attacked the protesters with billy clubs and tear gas at various places between the park and the convention center as violence reached its peak. As one historian would note later, "Millions of Americans turned on their televisions expecting to see Hubert Humphrey win the Democratic presidential nomination," but saw the networks cut away to live coverage of the riots;{{cite news|title=TV Networks Hit By Irate Viewers|newspaper=Pittsburgh Post-Gazette|date=13 September 1968|page=2}} recognizing what was happening, the protesters began to chant "The whole world is watching!".{{cite book|last=Copeland|first=David|title=The Media's Role in Defining the Nation: The Active Voice|publisher=Peter Lang|year=2010|isbn=978-1433103797|page=221}}

;29 August - 7 September

African-American inmates rioted at the Long Bình Jail, the military prison for U.S. servicemen near Saigon. The uprising would last for 9 days; one inmate was killed and 52 inmates and 63 military policemen were injured and numerous buildings burnt down.{{cite web|url=http://www.historynet.com/long-binh-jail-riot-during-the-vietnam-war.htm|title=Long Binh Jail Riot During the Vietnam War|author= Joe Kolb|date=12 June 2006 |publisher=HistoryNet.com}}

;30 August – 2 September

The PAVN captured Hà Thanh Special Forces camp {{convert|14|mi}} west of Quảng Ngai with 12 PAVN and four U.S. killed. Allied forces would recapture the camp on 2 September.{{rp|270}}

;4–24 September

Operation Champaign Grove was a security operation conducted by elements of the 11th Infantry Brigade in Quảng Ngãi Province. The operation resulted in 378 PAVN/VC and 41 U.S. killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/2793/27930403007.pdf|title=Combat Operations After Action Report|publisher=Department of the Army |access-date=29 July 2019|page=16}}{{PD-notice}}

;5–7 September

Typhoon Bess hit I Corps causing most Allied operations to be suspended and inflicting major damage on civilian homes and rice crops.{{rp|383}}

;8 September

U.S. negotiator W. Averell Harriman had his first private meeting with Le Duc Tho in the Paris suburb of Vitry-sur-Seine.{{cite book|last=Cheng|first=Guan Ang|title=Ending the Vietnam War: The Vietnamese Communists' Perspective|publisher=Routledge|year=2005|isbn=978-0415326094|page=13}}

Brigadier General Trương Quang Ân, commander of the 23rd Division was the first ARVN general killed in action when his helicopter crashed near Duc Lap Camp. Also killed were his wife and an adviser and three U.S. crewmen.{{rp|271}}

;10 September

File:Henry Kissinger.png

Harvard University professor Henry Kissinger began a relationship with Republican presidential nominee Richard Nixon with a telephone call to the Nixon campaign's foreign policy adviser, Richard V. Allen, offering his services that would lead to Kissinger's appointment as Nixon's National Security Adviser and, later, as the U.S. Secretary of State. Allen recounted later that Kissinger said that he had many friends who were involved in the Paris Peace Talks on behalf of President Johnson, and began providing the Nixon campaign with classified information from the talks.{{cite book|last=Hersh|first=Seymour Hersh|title=The Price of Power: Kissinger in the Nixon White House|publisher=Summit Books|year=1983|isbn=978-0671447601|pages=12–24}} In 2016, notes from another Nixon adviser, H. R. Haldeman, would confirm suspicion that Nixon had used Kissinger's information to sabotage the peace talks in the days before the election.{{cite news|title=Nixon's Vietnam Treachery|author=John A. Farrell|magazine=New York Times Sunday Review|date=31 December 2016}}

In a speech before the American Legion, Johnson stated that Abrams had advised that a U.S. bombing halt without reciprocal North Vietnamese de-escalation would result in increased U.S. losses.{{rp|271}}

;10–29 September

Operation Vinh Loc was a security operation conducted by the 2nd Brigade, 101st Airborne Division and ARVN 54th Regiment on Vinh Loc Island, Phú Vang District. The operation resulted in 154 VC killed, 370 captured and 56 Chieu Hoi. U.S. losses were two killed.{{cite book|last=Tolson|first=John|title=Vietnam Studies: Airmobility 1961–1971|publisher=Department of the Army|date=1973|isbn=9781494721848|page=208}}{{PD-notice}}

;11 September

Chairman of the Joint Chiefs of Staff General Wheeler advised President Johnson not to halt bombing of North Vietnam.{{cite web|url=https://history.state.gov/historicaldocuments/frus1964-68v07/d10|title=Paper Prepared by the Chairman of the Joint Chiefs of Staff(Wheeler)|publisher=United States Stat Department|date=11 September 1968|access-date=5 July 2020}}{{PD-notice}}

;11 September – 24 April 1969

Operation Lam Son 261 was conducted by the ARVN 1st Division in Quảng Trị and Thừa Thiên Provinces. The operation resulted in 724 PAVN/VC killed.{{rp|272}}

;12 September

A VC report (captured in Bình Dương Province) from the Châu Thành District Security Section to the provincial Party Central Committee stated that seven prisoners in the district's custody were shot prior to an expected Allied sweep operation, the report read: "we killed them to make possible our safe escape."

;13 September

1st Infantry Division commander Major General Keith L. Ware and seven others are killed when their helicopter is shot down near Lộc Ninh.{{rp|668}}

;25 September

The VC attacked Katum Camp but the attack was repulsed at a cost of 14 CIDG killed and 61 VC killed and 10 captured.{{cite web|url=http://www.vhpa.org/KIA/panel/battle/68081820.HTM|title=Battle for Katum information for A-322 SF DET From date 680818 to 680925|publisher=Vietnam Helicopter Pilots Association|access-date=14 July 2020}}

;26 September

In his annual report, the UN Secretary General U Thant stated that the war was a nationalist struggle and that the major powers should "let the Vietnamese themselves deal with their own problems."{{rp|272}}

;28–30 September

In the Battle of Thượng Đức the PAVN 2nd Division attempted to overrun Thường Ðức Camp. The attack was repulsed and 70+ PAVN killed.{{rp|726}}

;30 September

Trailing Richard Nixon in presidential preference polls, Democratic Party candidate and U.S. Vice President Hubert H. Humphrey made the decision to come out against U.S. President Johnson's policy on the war, delivering a speech pledging that if elected, he would halt U.S. bombing of North Vietnam unconditionally.{{cite news|title=Vietnam Bombing Halt Speech Turning Point for Humphrey|author=Harry Kelly|newspaper=Pittsburgh Post-Gazette|date=7 October 1968|page=1}} He further stated that he would support the resumption of bombing if the North Vietnamese "were to show bad faith".{{cite news|title=Humphrey Vows Bombing Halt — 'Acceptable Risk,' He Says in Move From LBJ Side|newspaper=Pittsburgh Post-Gazette|date= 1 October 1968|page=1}}

;30 September – 1 April 1969

File:New Jersey Underway.jpg

The battleship {{USS|New Jersey|BB-62|6}} joined the gunline off the coast of South Vietnam initially providing naval gunfire support against PAVN targets in and near the DMZ.{{cite web|url=https://www.history.navy.mil/research/histories/ship-histories/danfs/n/new-jersey-ii.html|title=USS New Jersey (BB 62) History|work=Dictionary of American Naval Fighting Ships|publisher= United States Navy|access-date=10 July 2020}}

;1–19 October

Operation Maui Peak was a 1st Marine Division operation near Thường Ðức Camp to keep pressure on the PAVN 2nd Division. The operation resulted in 202 PAVN and 28 Marines killed.{{rp|726}}

;3 October

File:LeMay for Vice President.png

U.S. presidential candidate George C. Wallace, who was running as the American Independent Party selection against Republican Richard Nixon and Democrat Hubert Humphrey, introduced his running mate, retired USAF General Curtis E. LeMay. LeMay told a press conference that although he didn't believe that nuclear weapons would be necessary in the Vietnam War, he wouldn't be opposed to their use. "It doesn't make any difference to the soldier whether he is killed by a rusty knife or a nuclear explosion," LeMay commented, adding, "In fact, I'd lean toward the nuclear weapon."{{cite news|title=LeMay Urges 'Hard Line' On Vietnam War|newspaper=Pittsburgh Post-Gazette|date=4 October 1968|page=1}}

A USAF C-7 Caribou (#63-9753) that had just taken off from the Camp Evans airstrip collided with a 1st Cavalry Boeing CH-47 Chinook (#66-19041) resulting in the death of all 24 passengers and crew on both aircraft.{{cite web|url=http://aviation-safety.net/database/record.php?id=19681003-0|title=de Havilland C-7B Caribou|publisher=Aviation Safety network|accessdate=23 October 2014}}

;8 October

Operation Sealords was launched to disrupt PAVN/VC supply lines in and around the Mekong Delta. As a two-year operation, by 1971 all aspects of Sealords had been turned over to the Republic of Vietnam Navy.{{cite web|url = http://www.history.com/this-day-in-history/10/8?catId=15|title = U.S. and South Vietnamese navies commence Operation Sealords|publisher=History.com| access-date=8 March 2010| last=History.com| archive-url= https://web.archive.org/web/20100308000150/http://www.history.com/this-day-in-history/10/8?catId=15|archive-date=8 March 2010|url-status=live}}

;12 October

Former Johnson Administration national security adviser McGeorge Bundy called for a bombing halt and substantial U.S. troop reductions.{{rp|275}}

;14 October

The Defense Department announced that up to 16,000 Army and 6,000 Marine career officers and NCOs would be sent back to South Vietnam for involuntary second tours due to a shortage of experienced personnel.{{rp|275}}

;16 October

In a telephone conference call with all three of the major U.S. presidential candidates, President Johnson informed them that he had no plans to change the U.S. bombing of North Vietnam.{{cite news|title=Johnson Dashes Bomb Halt Hope – 'No Change In Policy' As Talks Fizzle Again|newspaper=Pittsburgh Press|date=16 October 1968|page=1}}

;16 October – 24 April 1969

Operation Lam Son 271 was conducted by the ARVN, 2nd Regiment, 1st Division in Quảng Trị Province. The operation resulted in 603 PAVN/VC killed.{{rp|275}}

;20 October

A USAF C-47D crashed 32 km south of Buôn Ma Thuột killing all 23 on board.{{cite web|url=https://aviation-safety.net/database/record.php?id=19681020-2|title=Aircraft accident Douglas C-47D (DC-3)|publisher=Aviation Safety Network|access-date=20 August 2020}}

;22 October

Republican presidential candidate Richard Nixon instructed H. R. Haldeman to get intermediaries to persuade South Vietnamese President Thiệu to refuse to participate in the Paris Peace Talks to end the war.{{cite news|title=Nixon's Vietnam Treachery|author=John A. Farrell|newspaper=The New York Times|date=31 December 2016|url=https://www.nytimes.com/2016/12/31/opinion/sunday/nixons-vietnam-treachery.html}} Efforts by private citizens to "defeat the measures of United States" were a federal crime, but this interference remained secret for 48 years.{{cite web|url=https://www.smithsonianmag.com/smart-news/notes-indicate-nixon-interfered-1968-peace-talks-180961627/|title=Notes Indicate Nixon Interfered With 1968 Peace Talks|author=Jason Daley|publisher=Smithsonian.com|date=2 January 2017|access-date=5 July 2020}}

;23-7 October

Operation Rich was a 1st Brigade, 5th Infantry Division (Mechanized) combined arms assault near the Bến Hải River. The operation resulted in 308 PAVN and eight U.S. killed.

;23 October to 6 December

Operation Henderson Hill was a 1st Marine Division operation in Happy Valley, Quảng Nam Province. the operation resulted in 700 PAVN/VC killed and 94 captured and 35 Marines killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/107/1070201007A.pdf|title=MACV Monthly Summary December 1968|publisher=Headquarters United States Military Assistance Command, Vietnam|date=15 February 1969|access-date=5 July 2020}}{{PD-notice}}{{rp|15}}

;25 October to 2 November

Operation Vernon Lake was an 11th Infantry Brigade clear and search operation west of Quảng Ngai. the operation resulted in 455 PAVN/VC and 35 U.S. killed.

;25 October to 16 November

Operation Garrard Bay was a 2nd Battalion, 26th Marines clear and search operation in Quảng Nam Province. The operation resulted in 19 PAVN/VC and seven Marines killed.

;26 October

The 1st Cavalry Division was ordered to move from northern I Corps to III Corps northwest of Saigon near the Cambodian border in an operation named Operation Liberty Canyon. The 3rd Brigade, 1st Cavalry Division was the lead element of the Division and was air-lifted to Quần Lợi Base Camp to begin operations.{{cite web|url=https://apps.dtic.mil/dtic/tr/fulltext/u2/502415.pdf|archive-url=https://web.archive.org/web/20190718041617/https://apps.dtic.mil/dtic/tr/fulltext/u2/502415.pdf|url-status=dead|archive-date=July 18, 2019|title=Operational Report – Lessons Learned, Headquarters, 1st Cavalry Division Artillery, Period Ending 31 January 1969|publisher=Department of the Army|date=3 June 1969|access-date=28 August 2021|page=3}}{{PD-notice}}

;27 October

In the largest anti-American protest in British history, a crowd of 30,000 demonstrators marched through London near the U.S. Embassy.{{cite news|url=http://news.bbc.co.uk/onthisday/hi/dates/stories/october/27/newsid_2478000/2478197.stm|title=1968: Police clash with anti-war protesters On this day|date=27 October 1968 |publisher=BBC.co.uk|access-date=5 July 2020}}

;29 October

Abrams met with Johnson and advised him that given battlefield conditions a complete halt on bombing North Vietnam is acceptable.{{rp|276}}

;30 October

A PAVN sapper and mortar attack on Camp Radcliff resulted in two South Vietnamese guards killed, four vehicles destroyed and damage to several buildings.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010695.pdf|title=After Action Report Attack on Camp Radcliff 30 October 1968|publisher=1st Battalion (Mechanized), 50th Infantry, 173rd Airborne Brigade|date=9 November 1968|access-date=8 June 2020}}

;31 October

President Johnson announces a total halt to US bombing in North Vietnam.{{rp|280}}

File:North Vietnamese fighter.jpg]]

;1 November

After three-and-a-half years, Operation Rolling Thunder comes to an end. In total, the campaign had cost more than 900 American aircraft. Eight hundred and eighteen pilots are dead or missing and hundreds are in captivity. Nearly 120 VPAF planes have been destroyed in air combat, accidents, or by friendly fire. According to U.S. estimates, 182,000 North Vietnamese civilians have been killed. Twenty thousand Chinese support personnel also have been casualties of the bombing.{{cite web |year= 2010|url = https://www.pbs.org/battlefieldvietnam/timeline/index2.html|title = Battlefield Timeline|publisher = Public Broadcast Service| access-date = June 5, 2010 | last=PBS| archive-url= https://web.archive.org/web/20100620092609/http://www.pbs.org/battlefieldvietnam/timeline/index2.html| archive-date= 20 June 2010 | url-status= live}}

The Accelerated Pacification Program began in South Vietnam.

;2 November

President Thiệu announced to the National Assembly that South Vietnam would refuse to participate in the Paris Peace Talks: "The Republic of Vietnam government is very sorry that such conditions for direct and serious talks between us and Hanoi have not yet come about. And therefore, the Republic of Vietnam cannot participate in the present Paris conference." At the same time, North Vietnamese negotiators in Paris said that it was up to the United States to guarantee that South Vietnam would join the peace talks.{{cite news|title=Thieu Boycotts Paris Talks|newspaper=Pittsburgh Press|date=2 November 1968|page=1}}

;2–7 November

Operation Commanche Falls III was a clear and search operation conducted by elements of the 1st Cavalry Division, 1st Brigade, 5th Infantry Division and ARVN 1st Division clear southeast of Quảng Trị City. the operation resulted in 107 PAVN/VC killed and ten captured and 20 U.S. killed.{{rp|277}}

;5 November

File:Nixon 68 Campaign crop.tif

Richard Nixon won the 1968 United States presidential election. The results of the popular vote were 31,770,000 for Nixon, 43.4 percent of the total; 31,270,000 or 42.7 percent for Humphrey; 9,906,000 or 13.5 percent for Wallace; and 0.4 percent for other candidates.{{cite book|last1=Boyer|first1=Paul|last2=Clifford|first2=Clark|last3=Hawley|first3=Sandra|last4=Kett|first4=Joseph|last5=Rieser|first5=Andrew|title = The Enduring Vision: A History of the American People, Volume 2: From 1865, Concise Volume 2 of The Enduring Vision|year=2009|publisher=Cengage Learning|isbn= 978-0-547-22278-3|page=696}}{{cite book|last1=Brune|first1=Lester|last2=Burns|first2=Richard|title=Chronological History of U.S. Foreign Relations: 1932-1988|year=2003|publisher=Routledge|isbn=978-0-415-93916-4|page=775}}

The Paris Peace Talks were called off less than 24 hours before they were to open, after the VC negotiator, Nguyen Thi Binh, said at her press conference that the group had a series of demands before it would negotiate, and the conditions were unacceptable to South Vietnam.{{cite news|title=Saigon Forces Delay In Talks— Tomorrow's Session Off Indefinitely|newspaper=Pittsburgh Press|date=5 November 1968|page=1}}

;7 November – 4 April 1969

Operation Sheridan Sabre was a security operation conducted by the 1st Cavalry Division (which had just moved from I Corps to III Corps), U.S. 11th Armored Cavalry Regiment and ARVN 36th Rangers in Bình Long Province to prevent PAVN infiltration from Cambodia. The operation resulted in 2,898 PAVN killed and 53 captured, 219 U.S. killed and six missing and 32 ARVN killed and one missing.{{cite web|url=http://www.3-5cav-blackknights.org/B_K-Reports/AD%20Numbers/AD%20502597--1st%20Cavalry%20Div..pdf|title=Operational Report – Lessons Learned, Headquarters, 1st Cavalry Division (Airmobile), Period Ending 31 January 1969|publisher=Department of the Army|date=6 June 1969|access-date=5 July 2020|page=3}}{{PD-notice}}

;11 November

A VC mortar and recoilless rifle attack on Camp Radcliff killed four South Vietnamese civilians and ignited 13,643 barrels of POL, one VC was killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010696.pdf|title=After Action Report Attack on Camp Radcliff 11 November 1968|publisher=1st Battalion (Mechanized), 50th Infantry, 173rd Airborne Brigade|date=22 November 1968|access-date=14 July 2020}}

Nixon was briefed on the war by members of the Johnson Administration and agreed that Johnson could follow current policy until his inauguration.{{rp|278}}

;12 November

Clifford warned that if South Vietnam continued refusing to participate in the Paris Peace Talks the U.S. would start negotiating without them.{{rp|278}}

;13 November

A 1,000-man PAVN force attacked Landing Zone Dot which was defended by the ARVN 36th Regiment supported by Battery D, 1st Battalion, 5th Artillery. The attack was beaten back with support from aerial rocket artillery and artillery at nearby firebases. PAVN losses were 287 killed, while ARVN losses were 4 killed and 23 wounded.{{cite news|title=Enemy force beaten back at Cambodia line|newspaper=Toledo Blade|date=14 November 1968|url=https://news.google.com/newspapers?nid=1350&dat=19681114&id=QicxAAAAIBAJ&pg=6607,4206880}}

;14 November

PAVN sappers attacked Firebase Vera under cover of mortar fire, killing six U.S. for the loss of six PAVN.

PFC Francis Baldino, a rifleman with the 2nd Platoon, D Company, 1st Battalion, 4th Marines was killed by a tiger while on a night patrol out of LZ Alpine {{convert|9|mi}} northwest of Khe Sanh Combat Base.{{cite news|newspaper=Standard-Speaker|title=Ashland Marine killed by tiger while on patrol in S. Vietnam|date=4 December 1968|url=https://www.newspapers.com/clip/2786471/standard-speaker/}}

;15 November

MACV reported a massive increase in PAVN activity in southern North Vietnam and that all bombed bridges below the 19th parallel had been repaired.{{rp|279}}

;15 November – 29 March 1972

Operation Commando Hunt was a covert USAF Seventh Air Force and U.S. Navy Task Force 77 aerial interdiction campaign against the Ho Chi Minh Trail.{{cite book|last=Nalty|first=Bernard|title=The War Against Trucks: Aerial Interdiction in Southern Laos, 1968–1972|publisher=Air Force Museums and History Program|year=2005|url=https://media.defense.gov/2010/Oct/06/2001329752/-1/-1/0/AFD-101006-027.pdf|isbn=978-1477550076|page=220}}{{PD-notice}}

;20 November - 9 December

File:John Gartrell, Tunnel Rat, 1968 (14994691217).jpg

Operation Meade River was a 1st Marine Division cordon and search operation in Dodge City, Quảng Nam Province. The operation resulted in 1,023 PAVN/VC killed and 123 captured and 108 Marines killed.{{rp|436}}

;25 November

New rules of engagement (ROE) were promulgated for U.S. Navy and USAF fighters that were escorting reconnaissance aircraft over North Vietnam. Although bombing of North Vietnam had been halted, planes still flew in North Vietnamese airspace as far north as the 19th parallel. Under the new ROE, U.S. escort planes were allowed to fire missiles if their missions came under attack, including not just anti-aircraft weapons, as well as "installations and immediate supporting facilities." "American pilots," a U.S. Navy historian would later note, "became more aggressive over time, occasionally attacking sites that illuminated them with radar even if no shots were fired."{{cite book|last=Sherwood|first=John|title=Nixon's Trident: Naval Power in Southeast Asia, 1968–1972|publisher=Naval History & Heritage Command|year=2015|isbn=978-1494258788|page=24}}

An Air America C-46 crashed shortly after takeoff from Savannakhet Airport killing 26 on board.{{cite web|url=https://aviation-safety.net/database/record.php?id=19681125-1|title=Aircraft accident Curtiss C-46A-45-CU Commando|publisher=Aviation Safety Network|access-date=21 August 2020}}

;26 November

Under American pressure, President Thiệu reversed his 2 November decision not to participate in the Paris Peace Talks.{{cite news|title=Saigon Agrees To Attend Peace Talks in Paris— Thieu Regime Will Join Hanoi, NLF In Negotiations; Johnson Warns That Hard Bargaining and Fighting Still Lie Ahead|newspaper=Pittsburgh Post-Gazette|date=27 November 1968|page=1}}

;26 November – 7 January 1969

Operation Pigfat was mounted by the RLA against PAVN/Pathet Lao forces around Lima Site 85. While initially successful the arrival of PAVN reinforcements from the 316th Division forced the RLA to withdraw. RLA losses were 300 killed and 400 missing while PAVN/Pathet Lao losses are unknown.{{cite book|last1=Conboy|first1=Kenneth|last2=Morrison|first2=James|title=Shadow War: The CIA's Secret War in Laos|publisher=Paladin Press|year=1996|isbn=0-87364-825-0}}{{rp|201–5}}

;28 November

North Vietnam announced that it would negotiate only with the United States, or refuse to attend the talks altogether.{{cite news|title=Hanoi Snubs Saigon Regime In Paris Talks|newspaper=Pittsburgh Post-Gazette|date=29 November 1968|page=1}}

;29 November

Radio Hanoi broadcast a VC directive for a new offensive to "utterly destroy" Allied forces, particularly the Phoenix Program units.{{rp|279–80}}

;December to 11 May 1969

Operation Speedy Express a controversial United States military operation conducted in the Mekong Delta provinces of Kien Hoa and Vĩnh Bình begins. The operation was launched to prevent VC units from interfering with pacification efforts and to interdict lines of communication and deny them the use of base areas.{{rp|12}}

;3 December – 19 February 1969

File:Australian soldier during Operation Goodwood (1968-1969).jpg

In the Battle of Hat Dich 1ATF and ARVN forces engaged PAVN/VC units in the Hat Dich Secret Zone, Hắc Dịch. The battle resulted in 245 PAVN/VC killed and 17 captured and 22 Australians/New Zealanders and 31 ARVN killed.{{cite book|last=Avery|first=Brian|title=In the ANZAC Spirit: The Fourth Battalion, Royal Australian Regiment/NZ (ANZAC): South Vietnam 1968 to 1969|publisher=Slouch Hat Publications|year=2002|isbn=0-95797521X|page=155}}

;8 December - 10 February 1969

Operation Le Loi I was a security operation conducted by the ARVN 1st Ranger Group in Quảng Nam Province. The operation resulted in 695 PAVN/VC killed.{{rp|280}}

;9 December to 28 February 1969

Operation Marshall Mountain was a 1st Brigade, 5th Infantry Division (Mechanized) and ARVN 1st Regiment, 1st Division clear and search operation in eastern Quảng Trị Province. The operation resulted in 78 PAVN and six U.S. killed.

;12 December – 9 March 1969

Operation Taylor Common was a search and destroy operation conducted by Task Force Yankee, a task organized force of the 1st Marine Division. The objective was to clear the An Hoa Basin, neutralize the PAVN's Base Area 112 and develop Fire Support Bases (FSBs) to interdict PAVN infiltration routes leading from the Laotian border.{{rp|12}} The operation resulted in 1,398 PAVN killed and 29 captured and 183 Marines and 100 ARVN killed.{{rp|94}}

;15 December

Clifford states that the U.S. has no obligation to maintain current force levels in South Vietnam and that U.S. and North Vietnamese forces can be withdrawn as talks progress.{{rp|281}}

;15 December to 5 January 1969

Operation Valiant Hunt was a BLT 2nd Battalion, 26th Marines and HMM-362 clear and search operation on Barrier Island, south of Hội An. the operation resulted in 33 PAVN/VC and three Marines killed.{{rp|300}}

;15 December to 28 February 1969

Operation Fayette Canyon was a security operation conducted by the 196th Infantry Brigade in "Antenna Valley", Hiệp Đức District and in the Nui Mat Rang mountains northwest of Tam Kỳ. The operation resulted in 327 PAVN/VC killed and four captured and two U.S. killed.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/107/1070204004.pdf|title=Weekly Summary|publisher=Headquarters United States Military Assistance Command, Vietnam office of Information|date=23 January 1969|access-date=5 July 2020}}{{PD-notice}}

;17 December

Democratic senator George McGovern described Kỳ as a "little tinhorn dictator" in comments that Saigon was delaying the peace negotiations.{{rp|281}}

;18 December

Writing in Foreign Affairs Henry Kissinger proposed twin track negotiations with the U.S. and North Vietnam agreeing a mutual de-escalation and South Vietnam and the VC agreeing a political settlement. He said that once the U.S. had withdrawn its forces from South Vietnam it was under no obligation to maintain South Vietnam by force.{{rp|281}}

;28 December

The 3rd Marine Division base at Camp Carroll is deactivated and control passed to the ARVN.{{cite web|url=https://www.vietnam.ttu.edu/reports/images.php?img=/images/1683/168300010759.pdf|title=Headquarters MACV Monthly Summary December 1968|publisher=Headquarters United States Military Assistance Command, Vietnam|date=15 February 1969|access-date=28 August 2021|page=44}}{{PD-notice}}

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