Assault Craft Unit 1

File:LCM-2 from USS President Jackson (AP-37) beached on Guadalcanal, circa 1942 (USMC 51371).jpg

Assault Craft Unit 1 traces its roots to World War II as hundreds of LCUs were decommissioned, leaving 30 LCUs in the command of "Centralized Flotilla Command" in NAB Coronado known as LCU Squadron ONE. In July, 1947, a neighboring command, Boat Unit ONE, was created to command Landing Craft Mechanized (LCM) LCM-3s and Landing Craft, Vehicle, Personnel (LCVP)s. In 1950, the two commands participated in the Battle of Inchon and in every amphibious operation of the Korean War afterward.{{Cite web| url=http://www.public.navy.mil/surfor/acu1/Pages/AboutUs.aspx| archive-url=https://archive.today/20130409222142/http://www.public.navy.mil/surfor/acu1/Pages/AboutUs.aspx| url-status=dead| archive-date=April 9, 2013| title=Assault Craft Unit 1 History| accessdate=17 March 2013}}

In 1963, the LCU Squadron ONE and Boat Unit ONE were merged to make Assault Craft Squadron 1 (ACS-1). In 1968, the Chief of Naval Operations (CNO) directed to have ACS-1 and its Assault Craft Divisions ELEVEN, TWELVE and THIRTEEN be disestablished and reformed as Assault Craft Unit ONE (ACU 1).

In 1990, in response to the Gulf War, ACU-1 was a first responder, acting to transport and unload cargo from Maritime Prepositioning Ships using LCM-8s. Since the September 11 attacks, ACU-1 has operated outside of a strictly military role, providing humanitarian services and disaster relief. Recently, ACU-1 has operated with other Amphibious Battalions providing Military logistics for the Key Resolve/Foal Eagle Military exercise in South Korea.

On 28 February 1968, near Ocean View, Viet Nam, LCU 1500 was hit by a rocket, killing the Radioman. One year later, on 27 February 1969, while loading ammunition in Da Nang, an enemy rocket hit the nearly loaded craft and killed 13 crew aboard. On 14 March 1969, ACU-1 began an annual memorial to the 14 sailors that lost their lives on LCU 1500.{{Cite web|url=http://www.public.navy.mil/surfor/acu1/Pages/LCU1500.aspx |title=BACKGROUND INFORMATION ON LCU 1500 |accessdate=17 March 2013 |url-status=dead |archiveurl=https://web.archive.org/web/20130409223137/http://www.public.navy.mil/surfor/acu1/Pages/LCU1500.aspx |archivedate=9 April 2013 }} At the ACU-1 compound on NAB Coronado, a recreational cabana was erected near its piers and painted to look like LCU 1500. The cabana houses pictures of the crew and ship as well as a memorial with the names of the slain Sailors.{{Cite web| url=http://www.navy.mil/submit/display.asp?story_id=37500| archive-url=https://web.archive.org/web/20140531090643/http://www.navy.mil/submit/display.asp?story_id=37500| url-status=dead| archive-date=May 31, 2014| title=Survivor Remembers Vietnam-era Assault on Landing Craft| accessdate=17 March 2013}}

File:Flickr - Official U.S. Navy Imagery - A Landing Craft Utility enters the well deck of the amphibious dock landing ship..jpg]]

The six departments of ACU-1 are Landing Craft, Administration, Engineering, Medical, Operations, and Supply.{{Cite web|url=http://www.public.navy.mil/surfor/acu1/Pages/Dept.aspx |title=ACU ONE Departments |accessdate=17 March 2013 |url-status=dead |archiveurl=https://web.archive.org/web/20121018171805/http://www.public.navy.mil/surfor/acu1/Pages/Dept.aspx |archivedate=18 October 2012 }} The most prevalent ratings at the command are Boatswain's Mates (BM), Enginemen (EN), Quartermasters (QM), and Undesignated Seamen (SN). Secondary and support ratings at ACU-1 include Culinary Specialists (CS), Damage Controlmen (DC), Electrician's Mates (EM), Hull Maintenance Technicians (HT), Logistics Specialists (LS), Machinist's Mates (MM), Operations Specialists (OS), Navy Counselors (NC), and Yeomen (YN).

The LC department is divided into three divisions; LCU, MPF, and MRF. The LCU Division operates its LCUs which can make long deployments independently or aboard larger amphibious vessels such as LHDs and LHAs. The MPF Department operate and maintain its LCM-8 and MPFUB crafts locally and are mobilized and flown to theaters to perform maritime prepositioning operations within 24 hours notice. The MRF Department operates 6 eleven-meter RHIBs for VBSS training and operation.

ACU-1 had its change of command on Dec. 1, 2017, at which time CDR Nathan W. Fugate took over as Commanding Officer.

File:Assault Craft Unit ONE Medals 2013.jpg in March 2013]]

Through its continuous operation from the Korean War through today, Assault Craft Unit ONE has been awarded 21 different medals, several with multiple awards.

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• [https://web.archive.org/web/20110810201020/http://www.public.navy.mil/surfor/acu1/Pages/default.aspx ACU-1 Home Page]

Category:Amphibious units and formations of the United States Navy