Battle of Khasham

{{see also|American-led intervention in the Syrian civil war|List of United States attacks on Syria during the Syrian civil war|Al-Tanf (U.S. military base)}}

In September 2014, the United States began to undertake efforts to establish a global coalition with the declared aim of countering the Islamic State of Iraq and the Levant.[http://www.europarl.europa.eu/RegData/etudes/BRIE/2015/551330/EPRS_BRI%282015%29551330_EN.pdf The international coalition to counter ISIL/Da'esh (the 'Islamic State')] {{Webarchive|url=https://web.archive.org/web/20210215021758/https://www.europarl.europa.eu/RegData/etudes/BRIE/2015/551330/EPRS_BRI%282015%29551330_EN.pdf |date=2021-02-15 }} 17 March 2015. Since September 2014, the U.S. had conducted military operations in Syria, primarily against ISIL forces as part of Operation Inherent Resolve. The primary U.S.-backed force in the northeastern part of Syria is the Syrian Democratic Forces, a group composed predominantly of Kurdish and Arab militiamen. In 2017, backed by U.S. forces, the SDF captured Raqqa from the Islamic State and then advanced to the Euphrates River, where a deconfliction line was established by the governments of the United States and Russia.{{cite web |title=Russia Crosses the Euphrates: Implications |publisher=The Washington Institute for Near East Policy |date=2017-09-18 |url=http://www.washingtoninstitute.org/policy-analysis/view/russia-crosses-the-euphrates-implications |access-date=2018-02-09 |archive-date=2019-03-27 |archive-url=https://web.archive.org/web/20190327102735/https://www.washingtoninstitute.org/policy-analysis/view/russia-crosses-the-euphrates-implications |url-status=live }}

On several occasions, U.S. forces struck Syrian pro-government units operating in the area.{{cite news |last1=Hume |first1=Tim |last2=Almasy |first2=Steve |last3=Starr |first3=Barbara |last4=Roth |first4=Richard |title=Syria truce in limbo after US bombs troops |website=CNN |date=2016-09-18 |url=https://www.cnn.com/2016/09/18/middleeast/syria-claims-coalition-airstrike-hit-regime-forces/index.html |access-date=2018-02-10 |archive-date=2019-04-11 |archive-url=https://web.archive.org/web/20190411232131/https://www.cnn.com/2016/09/18/middleeast/syria-claims-coalition-airstrike-hit-regime-forces/ |url-status=live }}{{cite web |work=Reuters |title=U.S. strikes Syria militia threatening U.S.-backed forces - officials |date=2017-05-18 |url=https://uk.reuters.com/article/uk-mideast-crisis-syria-usa/u-s-strikes-syria-militia-threatening-u-s-backed-forces-officials-idUKKCN18E2JE |access-date=2018-02-09 |archive-date=2019-03-27 |archive-url=https://web.archive.org/web/20190327085911/https://uk.reuters.com/article/uk-mideast-crisis-syria-usa/u-s-strikes-syria-militia-threatening-u-s-backed-forces-officials-idUKKCN18E2JE |url-status=dead }}{{cite news |last=Browne |first=Ryan |title=New details on US shoot down of Syrian jet |website=CNN |date=2017-06-21 |url=https://www.cnn.com/2017/06/21/politics/us-syria-russia-dogfight/index.html |access-date=2018-02-09 |archive-date=2019-05-09 |archive-url=https://web.archive.org/web/20190509122120/https://www.cnn.com/2017/06/21/politics/us-syria-russia-dogfight/index.html |url-status=live }} In November 2017, the U.S. government made it known that they were expanding their goals in Syria beyond routing ISIL forces, to pressure the Syrian government to make concessions at the Geneva talks.[https://www.washingtonpost.com/world/national-security/us-moves-toward-open-ended-presence-in-syria-after-islamic-state-is-routed/2017/11/22/1cd36c92-ce13-11e7-a1a3-0d1e45a6de3d_story.html U.S. moves toward open-ended presence in Syria after Islamic State is routed] {{Webarchive|url=https://web.archive.org/web/20180224202215/https://www.washingtonpost.com/world/national-security/us-moves-toward-open-ended-presence-in-syria-after-islamic-state-is-routed/2017/11/22/1cd36c92-ce13-11e7-a1a3-0d1e45a6de3d_story.html |date=2018-02-24 }} Washington Post, 22 November 2017. This intent was, in mid-January 2018, clearly broadcast by Secretary of State Rex Tillerson, who said the Trump administration would maintain an open-ended military presence in Syria to counter Iranian influence and ensure the departure of Syrian President Bashar al-Assad.[https://www.theguardian.com/us-news/2018/jan/17/us-military-syria-isis-iran-assad-tillerson US military to maintain open-ended presence in Syria, Tillerson says: US secretary of state says forces will remain in country in push against Isis, Bashar al-Assad and Iranian influence] {{Webarchive|url=https://web.archive.org/web/20180304213341/https://www.theguardian.com/us-news/2018/jan/17/us-military-syria-isis-iran-assad-tillerson |date=2018-03-04 }} The Guardian, 17 January 2018.[https://www.rferl.org/a/us-troops-staying-syria-indefinitely-open-ended-commitment-counter-assad-iran-isis-tillerson-says/28982139.html Tillerson: U.S. Troops Staying In Syria To Counter Assad, Iran] {{Webarchive|url=https://web.archive.org/web/20180209073218/https://www.rferl.org/a/us-troops-staying-syria-indefinitely-open-ended-commitment-counter-assad-iran-isis-tillerson-says/28982139.html |date=2018-02-09 }} Radio Liberty, 18 January 2018.

Russia had been conducting air military operations in Syria in support of the Syrian government since 30 September 2015. Furthermore, Russian private military contractors ("volunteers"), notably those associated with the Wagner Group, had been engaged in ground operations throughout that time, although their presence was never officially confirmed by the Russian government.

In February 2018, Lt. Gen. Jeffrey L. Harrigian, Commander of U.S. Air Forces Central Command, talked about the circumstances before the attack: "The coalition observed a slow buildup of personnel and equipment the previous week, and we reminded Russian officials of the SDF and coalition presence via the telephone deconfliction line. This was well in advance of the enemy forces' attack. I know you're going to ask, so I'm going to be clear that I will not speculate on the composition of this force or whose control they were under."[https://www.defense.gov/News/Transcripts/Transcript/Article/1441080/department-of-defense-press-briefing-by-lieutenant-general-harrigian-via-teleco/ News Transcript: Department Of Defense Press Briefing by Lieutenant General Harrigian via teleconference from Al Udeid Airbase, Qatar: Press Operations: Lieutenant General Jeffrey Harrigian, commander, U.S. Air Forces Central Command] U.S. Department of Defense, 13 February 2018. Harrigian presented the U.S. strike as demonstration of the coalition's readiness "to prevent a resurgence of ISIS".

On 22 February 2018, The Washington Post cited unnamed sources in U.S. intelligence as alleging that the communications intercepted days before and after the incident between Russian businessman Yevgeny Prigozhin, who was believed to finance Wagner, and senior Syrian officials, such as Mansour Fadlallah Azzam, as well as Kremlin officials, suggested that Prigozhin had "secured permission" from an unspecified Russian minister to go ahead with a "fast and strong" move in early February and was awaiting approval from the Syrian government.[https://www.washingtonpost.com/world/national-security/putin-ally-said-to-be-in-touch-with-kremlin-assad-before-his-mercenaries-attacked-us-troops/2018/02/22/f4ef050c-1781-11e8-8b08-027a6ccb38eb_story.html Putin ally said to be in touch with Kremlin, Assad before his mercenaries attacked U.S. troops] {{Webarchive|url=https://web.archive.org/web/20180302101532/https://www.washingtonpost.com/world/national-security/putin-ally-said-to-be-in-touch-with-kremlin-assad-before-his-mercenaries-attacked-us-troops/2018/02/22/f4ef050c-1781-11e8-8b08-027a6ccb38eb_story.html |date=2018-03-02 }} The Washington Post, 22 February 2018.

A few days before, Prigozhin had been indicted by the grand jury for the District of Columbia on charges related to the investigation into Russian interference in the 2016 U.S. elections.[https://www.justice.gov/file/1035477/download INDICTMENT: The Grand Jury for the District of Columbia charges:] {{Webarchive|url=https://web.archive.org/web/20180323233654/https://www.justice.gov/file/1035477/download |date=2018-03-23 }} The U.S. Department of Justice, 16 February 2018. A publication by the Ukraine-based anti-Kremlin InformNapalm alleged the operation had been cleared with the Russian military command by Sergey Kim, the chief of Wagner's operations department and a former Russian Naval Infantry officer.[https://informnapalm.org/42520-chvk-vagnera-sergej-kim/ Провальную операцию РФ в Хишаме планировал начальник оперативного отделения ЧВК «Вагнера» Сергей Ким] {{Webarchive|url=https://web.archive.org/web/20180220213023/https://informnapalm.org/42520-chvk-vagnera-sergej-kim/ |date=2018-02-20 }} Inform Napalm, 19 February 2018.[https://www.kyivpost.com/ukraine-politics/wagners-failed-attack-us-forces-syria-led-former-russian-marine-officer.html Wagner's failed attack on US forces in Syria 'led by former Russian Marine officer'] {{Webarchive|url=https://web.archive.org/web/20180219175204/https://www.kyivpost.com/ukraine-politics/wagners-failed-attack-us-forces-syria-led-former-russian-marine-officer.html |date=2018-02-19 }} Kyiv Post, 19 February 2018.[https://www.polygraph.info/a/russian-news-accidentally-reveals-evidence-of-pmc-wagner-in-car/30197589.html polygraph.info (3 October 2019) Russian News Accidentally Reveals Evidence of PMC Wagner in CAR] {{Webarchive|url=https://web.archive.org/web/20191004011915/https://www.polygraph.info/a/russian-news-accidentally-reveals-evidence-of-pmc-wagner-in-car/30197589.html |date=4 October 2019 }} Evidence reported in "September 29 edition of Vesti Nedeli – News of the Week -- Dmitry Kiselyov"

According to the U.S. military's official statement, around 10 p.m. local time on the night of 7 February 2018, a force of 500 pro-government fighters consisting of local militiamen, Syrian Army regulars, Shia militants from Liwa Fatemiyoun and Liwa Zainebiyoun, and reportedly Russian private military contractors, launched an assault on an SDF headquarters near Khasham.[http://www.centcom.mil/MEDIA/NEWS-ARTICLES/News-Article-View/Article/1435218/unprovoked-attack-by-syrian-pro-regime-forces-prompts-coalition-defensive-strik/ Unprovoked attack by Syrian pro-regime forces prompts Coalition defensive strikes] {{Webarchive|url=https://web.archive.org/web/20190220063104/http://www.centcom.mil/MEDIA/NEWS-ARTICLES/News-Article-View/Article/1435218/unprovoked-attack-by-syrian-pro-regime-forces-prompts-coalition-defensive-strik/ |date=2019-02-20 }} CJTF-OIR PAO, 7 February 2018. Supported by T-72 and T-55 tanks, the pro-government troops first shelled the SDF base with artillery, mortars, "coordinated attack". Around 20–30 shells landed within {{convert|500|meters}} of the headquarters.

According to the U.S. military, the presence of U.S. special operations personnel in the targeted base elicited a response by coalition aircraft, including AC-130 gunships, F-22 Raptor and F-15E Strike Eagle fighter jets, MQ-9 Reaper unmanned combat aerial vehicles, AH-64 Apache attack helicopters, and B-52 bombers. Nearby American artillery batteries, including an M142 HIMARS, shelled Syrian forces as well. According to sources in Wagner, cited by news media as well as the Department of Defense, U.S. forces were in constant contact with the official Russian liaison officer posted in Deir ez-Zor throughout the engagement, and only opened fire after they had received assurances that no regular Russian troops were in action or at risk.[https://www.svoboda.org/a/29038004.html Имена и фамилии погибших бойцов "ЧВК Вагнера"] {{Webarchive|url=https://web.archive.org/web/20180215083858/https://www.svoboda.org/a/29038004.html |date=2018-02-15 }} Radio Liberty, 14 February 2018.

The clashes lasted four hours and saw more than 100 Syrian pro-government fighters killed, with one SDF fighter injured, according to the coalition. No U.S. troops were reported killed or wounded.

According to two unnamed U.S. defense officials cited by CNN on 8 February, the U.S. military had assessed that Russian contractors had been involved, with one saying some of the contractors had been killed in the airstrikes. A Kurdish militia commander and an ex-Russian officer also claimed Russian contractors were present and suffered casualties during the strikes.{{Cite web|url=https://www.themoscowtimes.com/2018/02/09/us-airstrikes-kill-100-russian-syrian-fighters-reports-say-a60445|title=U.S. Airstrikes Kill 100 Russian and Syrian Fighters, Reports Say|first=The Moscow|last=Times|date=February 9, 2018|website=The Moscow Times|access-date=May 21, 2020|archive-date=March 15, 2018|archive-url=https://web.archive.org/web/20180315101532/https://themoscowtimes.com/news/us-airstrikes-kill-100-russian-syrian-fighters-reports-say-60445|url-status=live}} During the two weeks following the incident, U.S. Secretary of Defense James Mattis and other U.S. military officials repeatedly stated that American military commanders were in contact with their official Russian counterparts prior to, during, and after the clash, and that the U.S military was told by their Russian counterparts that there were no Russians in the paramilitary formation.{{Cite news|url=https://www.rferl.org/a/syria-deir-zor-attack-pentagon-russians-involved/29058555.html|title=Pentagon Says U.S. Was Told No Russians Involved In Syria Attack|last=Eckel|first=Mike|date=23 February 2018|agency=Radio Liberty|access-date=1 March 2018|archive-date=11 July 2018|archive-url=https://web.archive.org/web/20180711222504/https://www.rferl.org/a/syria-deir-zor-attack-pentagon-russians-involved/29058555.html|url-status=live}}[https://www.defense.gov/News/Transcripts/Transcript/Article/1448350/department-of-defense-press-briefing-by-pentagon-chief-spokesperson-dana-w-whit/ Department of Defense Press Briefing by Pentagon Chief Spokesperson Dana W. White in the Pentagon: Briefing Room: Press Operations: Pentagon Chief Spokesperson Dana W. White] U.S. Department of Defense, 22 February 2018.

On 13 February 2018, unclassified footage depicting the coalition's targeted airstrikes on a pro-government T-72 tank position and a reported Russian contractor artillery position in the Khasham area was released by the Department of Defense.{{cite news|url=https://www.dvidshub.net/video/584540/t-72-weapon-system-video|title=T-72 Weapon System Video|date=13 February 2018|publisher=Defense Video & Imagery Distribution System|access-date=14 February 2018|archive-date=18 June 2018|archive-url=https://web.archive.org/web/20180618070008/https://www.dvidshub.net/video/584540/t-72-weapon-system-video|url-status=live}}{{Failed verification|date=March 2023}}

In an official statement that was released by the "ISIS Hunters" unit of the Syrian Armed Forces, they had received intelligence that ISIL forces were moving towards Khasham and government forces decided to move from the Euphrates so to cut off ISIL's line of attack. At this point, armed groups were spotted east of Khasham, in SDF-held territory, which then attacked the government's troops. The groups were quickly pushed back. The military claimed that, according to intercepted radio traffic, the groups were partly ISIL and partly Kurds, and retreated towards the Conoco factory. At this point, pro-government units were hit by airstrikes. According to Syrian military sources, some 55 pro-government fighters were killed, including around 10 Russian fighters.

Three weeks after the incident, Germany's Der Spiegel published their own investigative report based on evidence gleaned from multiple first-hand sources (participants and witnesses) in the area. According to this report, pro-Syrian government forces spent a week prior to the event gathering in the Deir ez-Zor Airport, which is located to the west of the Euphrates and south of Deir {{nowrap|ez-Zor}}, the capital city of Deir ez-Zor Governorate.

In the vicinity of this city, the Euphrates river runs roughly from the northwest to the southeast, flowing into neighboring Iraq, and splits the city in two. The Syrian government controlled all areas west of the river, including the great majority of Deir ez-Zor, and a salient on the river's east bank across from the city. The SDF controlled almost all other territory east of the river, excluding the salient and the islands in the river.

The Iranian-backed forces that had gathered consisted of members of the Syrian Army's elite 4th Armoured Division, members of the militias of the local Bekara and Albo Hamad Arab tribes, and members of the Iranian-controlled Fatemiyoun and Zainebiyoun brigades. Contrary to what was widely reported at the time, Der Spiegel later reported that according to witnesses, no Russian mercenaries were part of this formation. At the time, Russia and the United States had an agreement that no more than 400 pro-Syrian government fighters could be in the Syrian-government controlled salient on the river's east bank.

As with the deconfliction line, the Syrian government itself never officially agreed to this limit but due to its dependence on Russia, the Syrian Army had nevertheless been, by and large de facto adhering to both; the Iranian government also never joined either of these two bilateral U.S.–Russian agreements. Compared to its influence over the Syrian government, the Russian government had significantly less influence over Iran's government, military, and proxies in Syria, which constituted a large portion of pro-Syrian government ground forces in both Deir ez-Zor and throughout Syria.{{cite web|last=Waters|first=Gregory|url=https://www.mei.edu/publications/lion-and-eagle-syrian-arab-armys-destruction-and-rebirth|title=The Lion and The Eagle: The Syrian Arab Army's Destruction and Rebirth|publisher=Middle East Institute|date=18 July 2019|accessdate=3 August 2021|archive-date=21 July 2019|archive-url=https://web.archive.org/web/20190721154531/https://www.mei.edu/publications/lion-and-eagle-syrian-arab-armys-destruction-and-rebirth|url-status=live}}

The Syrian government's dependence on these ground forces for territorial control, a consequence of severe manpower shortages in the Syrian military, gave Iran significant influence over it, to the extent that Russia and Iran had to increasingly compete for control and influence over the Syria government.{{Cite journal|last=O. Peri and H. Varulkar|date=23 September 2019|title=Struggle Between Russia, Iran For Control Over Syria's Centers Of Power|url=https://www.memri.org/reports/struggle-between-russia-iran-control-over-syrias-centers-power|journal=Iran, Russia, Syria Inquiry & Analysis Series|volume=1475|access-date=3 August 2021|archive-date=30 June 2021|archive-url=https://web.archive.org/web/20210630133603/https://www.memri.org/reports/struggle-between-russia-iran-control-over-syrias-centers-power|url-status=live}}{{Cite news|date=19 April 2019|title=Assad Appoints Pro-Russia General as Chief of Staff|work=The Syrian Observer|agency=Zaman Al Wasl|url=https://syrianobserver.com/news/49866/assad-appoints-pro-russia-general-as-chief-of-staff.html|access-date=3 August 2021|archive-date=4 June 2021|archive-url=https://web.archive.org/web/20210604202741/https://syrianobserver.com/news/49866/assad-appoints-pro-russia-general-as-chief-of-staff.html|url-status=live}} Der Spiegel{{'s}} report did not indicate whether this formation was under Iranian or Syrian command or what attempt, if any, Russia made to force the Syrian and Iranian governments to comply with these U.S.–Russian agreements.

At around 5 a.m. on 7 February 2018, around 250 of these fighters attempted to cross the Euphrates over a military pontoon bridge located to the southeast of both the Deir ez-Zor Airport and the SDF base near Khasham. Warning shots fired by U.S. military forces in the area stopped this morning advance, and the fighters withdrew back to the west of the Euphrates; these warning shots did not result in any injuries. According to Der Spiegel, witnesses said that no Russian mercenaries were part of this group.

Later that same day, under the cover of darkness, about twice as many pro-Syrian government fighters successfully crossed a different bridge located northeast of Deir ez-Zor Airport. They arrived at the village of Marrot, which is northwest of both Khasham and the nearby SDF base. At around 10 p.m. that night, these fighters began to advance southeast toward Khasham. Concurrently, another group of Syrian tribal militia and Shia fighters began to advance north toward Khasham from Tabiyet Jazira, a Syrian government-controlled town east of the Euphrates that is significantly closer to Khasham (and the nearby the SDF base) than Marrot.

U.S. military forces once again opened fire, but this time with the intention of inflicting casualties.Christoph Reuter. [http://www.spiegel.de/international/world/american-fury-the-truth-about-the-russian-deaths-in-syria-a-1196074.html American Fury: The Truth About the Russian Deaths in Syria: Hundreds of Russian soldiers are alleged to have died in U.S. airstrikes at the beginning of February. Reporting by DER SPIEGEL shows that events were likely very different.] {{Webarchive|url=https://web.archive.org/web/20180304014923/http://www.spiegel.de/international/world/american-fury-the-truth-about-the-russian-deaths-in-syria-a-1196074.html |date=2018-03-04 }} Der Spiegel, 2 March 2018. According to Der Spiegel{{'s}} report, no Russians were in either formation, though there was a small contingent of Russian PMCs stationed in Tabiyeh who were not participating in the fighting. Notwithstanding that, between 10 and 20 of the Russians were killed in the U.S. strikes, while most of the formations' deaths were reportedly among the servicemen of the 4th Armoured Division of the Syrian Army. Further strikes were carried out on the mornings of February 8 and 9 on tribal militia members that had come to retrieve dead bodies.

Similarly, the UK-based Syrian Observatory for Human Rights reported that 68 pro-government fighters were killed during the day in the area,{{Cite web|url=https://www.syriahr.com/en/?p=84814|title=About 220 casualties and wounded of the Russian security companies, the regime forces and their allies in Coalition's bombing and the explosion of a warehouse of the Russian protection forces east of Euphrates • The Syrian Observatory For Human Rights|date=February 14, 2018|access-date=May 21, 2020|archive-date=December 28, 2019|archive-url=https://web.archive.org/web/20191228122846/http://www.syriahr.com/en/?p=84814|url-status=live}} including 45 who died in the coalition airstrikes,{{Cite web |url=https://www.houstonchronicle.com/news/world/article/Turkish-Russian-Iranian-leaders-to-meet-over-12560833.php |title=Syria says rare US strike an effort 'to support terrorism' |access-date=2018-02-24 |archive-url=https://web.archive.org/web/20180224113749/https://www.houstonchronicle.com/news/world/article/Turkish-Russian-Iranian-leaders-to-meet-over-12560833.php |archive-date=2018-02-24 |url-status=dead}} with most being Syrians. The remaining 23 pro-government personnel, including 15 Russians PMCs, were not killed in the airstrikes, but instead caught in a booby-trapped explosion at an arms depot at Tabiyet Jazira. The PMCs were accompanying government forces as they advanced towards the SDF-held oil and gas fields.[https://www.theguardian.com/world/2018/feb/15/fifteen-russian-security-staff-killed-in-syria-explosion Fifteen Russian security staff killed in Syria explosion: The incident at a weapons depot follows the reported deaths of scores of Russian mercenaries in a US-led coalition attack last week] {{Webarchive|url=https://web.archive.org/web/20180301064046/https://www.theguardian.com/world/2018/feb/15/fifteen-russian-security-staff-killed-in-syria-explosion |date=2018-03-01 }} The Guardian, 15 February 2018.

Shortly after the strikes, various Russian unofficial sources began to publicize information that a number of Russian "volunteers" (PMCs) had been killed in the strikes,{{Cite news|url=https://meduza.io/slides/v-den-aviaudara-amerikantsev-po-storonnikam-bashara-asada-v-sirii-pogibli-pyatero-rossiyan-kto-oni|title=В день авиаудара американцев по сторонникам Башара Асада в Сирии погибли пятеро россиян. Кто они?|work=Meduza|access-date=2018-02-14|language=ru-RU|trans-title=In the day of airstrike led by Americans against Assad's forces in Syria 5 Russians are perished. Who are they?|archive-date=2018-06-12|archive-url=https://web.archive.org/web/20180612141459/https://meduza.io/slides/v-den-aviaudara-amerikantsev-po-storonnikam-bashara-asada-v-sirii-pogibli-pyatero-rossiyan-kto-oni|url-status=live}} with some posts on Russian social media making claims of over 200 Russian PMCs being killed, although the veracity of this information was questioned{{Cite web|url=https://www.thedefensepost.com/2018/02/10/russians-killed-coalition-strikes-deir-ezzor-syria/|title=More than 200 Russians may have been killed in Coalition strikes in Syria|date=February 10, 2018|work=The Defense Post|access-date=May 21, 2020|archive-date=April 23, 2020|archive-url=https://web.archive.org/web/20200423084552/https://www.thedefensepost.com/2018/02/10/russians-killed-coalition-strikes-deir-ezzor-syria/|url-status=live}} and could not be confirmed.{{Cite web|url=https://www.usnews.com/news/world/articles/2018-02-13/reports-of-russian-deaths-underscore-dangers-of-syrias-war|title=Reports of Russian Deaths Underscore Dangers of Syria's War|work=U.S. News & World Report|access-date=2018-03-08|archive-date=2018-03-06|archive-url=https://web.archive.org/web/20180306044410/https://www.usnews.com/news/world/articles/2018-02-13/reports-of-russian-deaths-underscore-dangers-of-syrias-war|url-status=live}} Yevgeny Shabayev, a known critic of the company that hired the contractors, also claimed 218 PMCs were killed and that the families were still waiting for their remains.{{Cite news|url=http://www.france24.com/en/20180223-russia-fighters-syria-exclusive-interview-mercenary-wagner|title=The business of war: Russian mercenaries in Syria|date=2018-02-23|publisher=France 24|access-date=2018-02-23|archive-date=2018-02-23|archive-url=https://web.archive.org/web/20180223200219/http://www.france24.com/en/20180223-russia-fighters-syria-exclusive-interview-mercenary-wagner|url-status=live}} Additionally, a Russian military doctor, a leader of a PMC-linked paramilitary Cossack organization, and a source with ties to Wagner claimed 80–100 PMCs were killed and 200 wounded.{{Cite news|url=https://www.reuters.com/article/us-mideast-crisis-syria-russia-casualtie-idUSKCN1FZ2DZ|title=Russian toll in Syria battle was 300 killed and wounded: sources|work=Reuters|date=February 16, 2018|access-date=May 21, 2020|archive-date=June 15, 2020|archive-url=https://web.archive.org/web/20200615093701/https://www.reuters.com/article/us-mideast-crisis-syria-russia-casualtie-idUSKCN1FZ2DZ|url-status=live}}

Contrary to the claims of hundreds of deaths among the PMCs, a Russian investigative group, the Conflict Intelligence Team (CIT), confirmed 10 contractor deaths[https://www.thenational.ae/world/mena/russia-s-use-of-mercenaries-in-syria-is-causing-trouble-back-home-1.706122 Russia's use of mercenaries in Syria is causing trouble back home] {{Webarchive|url=https://web.archive.org/web/20180223205944/https://www.thenational.ae/world/mena/russia-s-use-of-mercenaries-in-syria-is-causing-trouble-back-home-1.706122 |date=2018-02-23 }} The National, 19 February 2018. and estimated a total of between 20 and 30 had died.[https://edition.cnn.com/2018/02/18/middleeast/us-airstrike-killed-dozens-of-russians-in-syria-intl/index.html The oil field carnage that Moscow doesn't want to talk about] {{Webarchive|url=https://web.archive.org/web/20180304023711/https://edition.cnn.com/2018/02/18/middleeast/us-airstrike-killed-dozens-of-russians-in-syria-intl/index.html |date=2018-03-04 }} CNN, 19 February 2018. A Russian journalist also believed between 20 and 25 PMCs died in the strikes. On 17 February,[https://www.pravda.ru/news/world/17-02-2018/1371126-troshev-0/ В Сирии погибло 14 человек - руководитель ЧВК "Вагнер" Трошев Андрей] {{Webarchive|url=https://web.archive.org/web/20180301142341/https://www.pravda.ru/news/world/17-02-2018/1371126-troshev-0/ |date=2018-03-01 }} Pravda.ru, 17 February 2018. a Wagner leader, Andrei Troshev, was quoted as saying 14 "volunteers" died in the battle.{{Cite web|url=https://www.pravdareport.com/news/hotspots/140103-wagner/|title=PMC Wagner chief: 14 were killed in Syria|date=February 19, 2018|website=PravdaReport|access-date=May 21, 2020|archive-date=February 19, 2018|archive-url=https://web.archive.org/web/20180219210835/http://www.pravdareport.com/news/hotspots/conflicts/19-02-2018/140103-wagner-0/|url-status=live}} Three other Wagner commanders also stated the claim of 200 dead was an exaggeration and that 15 PMCs were killed at the most.[https://www.svoboda.org/a/29084090.html Проект "Мясорубка". Рассказывают три командира "ЧВК Вагнера"] {{Webarchive|url=https://web.archive.org/web/20180623033216/https://www.svoboda.org/a/29084090.html |date=2018-06-23 }} Radio Liberty, 7 March 2018.

Russian newspaper Kommersant, citing Russian military and contractor sources, reported pro-government forces were attempting to capture the Conoco (locally called Al Tabiyeh) gas field from the SDF.{{cite news|url=https://www.kommersant.ru/doc/3548170|title=Diplomats specify who was killed by an American strike (Дипломаты уточняют, кто погиб от американского удара)|date=14 February 2018|work=Kommersant|access-date=14 February 2018|archive-date=28 May 2018|archive-url=https://web.archive.org/web/20180528061053/https://www.kommersant.ru/doc/3548170|url-status=live}}{{cite web |last1=Bergengruen |first1=Vera |last2=Daragahi |first2=Borzou |last3=al-Awad |first3=Munzer |title=Here's What We Know About The US Airstrikes That Killed Russian Fighters In Syria |website=BuzzFeed |date=2018-02-13 |url=https://www.buzzfeed.com/verabergengruen/heres-what-we-know-about-the-us-airstrikes-that-killed |access-date=2018-02-14 |archive-date=2018-06-20 |archive-url=https://web.archive.org/web/20180620001127/https://www.buzzfeed.com/verabergengruen/heres-what-we-know-about-the-us-airstrikes-that-killed |url-status=live }}

• {{RUS}} – Russian member of parliament Frants Klintsevich called U.S. strikes illegal and an act of aggression.{{cite web |work=Reuters |title=Russian lawmaker says U.S. strike in Syria an act of aggression: Inter |date=2018-02-08 |url=https://www.reuters.com/article/us-mideast-crisis-syria-russia/russian-lawmaker-says-u-s-strike-in-syria-an-act-of-aggression-interfax-idUSKBN1FS0Q7 |access-date=2018-02-09 |archive-date=2022-03-03 |archive-url=https://web.archive.org/web/20220303232531/https://www.reuters.com/article/us-mideast-crisis-syria-russia/russian-lawmaker-says-u-s-strike-in-syria-an-act-of-aggression-interfax-idUSKBN1FS0Q7 |url-status=live }} Russia has accused the U.S. of being motivated by the presence of oil in the area. Vasily Nebenzya, Russia's ambassador to the United Nations, called the strikes "regrettable" and promised to raise it to the Security Council.{{cite web |work=Reuters |title=U.S.-led coalition strike in Syria 'regrettable' |date=2018-02-08 |url=https://af.reuters.com/article/worldNews/idAFKBN1FS2NP |archive-url=https://web.archive.org/web/20180211071755/https://af.reuters.com/article/worldNews/idAFKBN1FS2NP |url-status=dead |archive-date=2018-02-11 |access-date=2018-02-10}} On 8 February 2018, the Russian foreign ministry spokesperson, without referring to the U.S. strike, spoke of "the U.S. military presence in Syria present[ing] a serious challenge to the peace process and thwart[ing] the protection of the country's territorial integrity."{{Cite web |url=http://www.mid.ru/ru/press_service/spokesman/briefings/-/asset_publisher/D2wHaWMCU6Od/content/id/3062808#2 |title=О развитии ситуации в Сирии // Брифинг официального представителя МИД России М.В.Захаровой, Москва, 8 февраля 2018 года |access-date=2018-02-24 |archive-date=2018-02-28 |archive-url=https://web.archive.org/web/20180228161536/http://www.mid.ru/ru/press_service/spokesman/briefings/-/asset_publisher/D2wHaWMCU6Od/content/id/3062808#2 |url-status=live }}
• {{flag country|Ba'athist Syria}} – The Syrian foreign ministry wrote to the United Nations calling for the international community to condemn U.S. actions and labeled them a war crime, a "brutal massacre", and a crime against humanity. The Syrian government also accused American forces of aiding terrorism and violating Syria's sovereignty.
• {{IRN}} – Ali Khamenei strongly condemned the confrontation and stated "Today, the U.S. government is the cruelest and most merciless system in the world, which is even worse than the savage ISIS members."{{cite web |last=O'Connor |first=Tom |url=http://www.newsweek.com/iran-says-us-even-worse-isis-bombing-supreme-leader-allies-syria-802257 |title=Iran Says U.S. 'Even Worse' Than ISIS After Bombing Supreme Leader's Allies in Syria |work=Newsweek |date=2017-09-20 |access-date=2018-04-30 |archive-date=2018-04-26 |archive-url=https://web.archive.org/web/20180426124718/http://www.newsweek.com/iran-says-us-even-worse-isis-bombing-supreme-leader-allies-syria-802257 |url-status=live }}

In the wake of the incident, in the absence of any official comments in response to allegations about Russian fatalities, details about Russian citizens' involvement and casualties in the U.S. strike began to be made public through social and mass media, provoking resentment and outrage from sections of the Russian public.[https://www.nytimes.com/2018/02/13/world/europe/russia-syria-dead.html Dozens of Russians Are Believed Killed in U.S.-Backed Syria Attack] {{Webarchive|url=https://web.archive.org/web/20180606055255/https://www.nytimes.com/2018/02/13/world/europe/russia-syria-dead.html |date=2018-06-06 }} New York Times, 13 February 2018.[https://www.bloomberg.com/news/articles/2018-02-13/cold-war-rivals-risk-direct-conflict-in-syria U.S. Strikes Killed Scores of Russia Fighters in Syria, Sources Say] {{Webarchive|url=https://web.archive.org/web/20180214142055/https://www.bloomberg.com/news/articles/2018-02-13/cold-war-rivals-risk-direct-conflict-in-syria |date=2018-02-14 }} Bloomberg, 13 February 2018. The issue gained additional sensitivity in Russia in view of the upcoming presidential election in March 2018. Prominent among those figures who early on made public information about presumably high numbers of Russian casualties in the U.S. strike was Igor Strelkov,[https://www.newsru.com/russia/09feb2018/accuseklautod.html Стрелков: от удара коалиции в Сирии погибли от ста до нескольких сотен военных из "ЧВК Вагнера", вывезли несколько "КамАЗов" трупов] {{Webarchive|url=https://web.archive.org/web/20180216143805/https://www.newsru.com/russia/09feb2018/accuseklautod.html |date=2018-02-16 }} NEWSru, 9 February 2018. who in late February 2018 was registered as an authorized representative of Sergey Baburin, leader of the nationalist Russian All-People's Union and candidate for the 2018 Russian presidential election.[http://novorossia.pro/strelkov/4533-igor-strelkov-korotko-o-vazhnom.html ИГОРЬ СТРЕЛКОВ: Коротко о важном] {{Webarchive|url=https://web.archive.org/web/20180304172704/http://novorossia.pro/strelkov/4533-igor-strelkov-korotko-o-vazhnom.html |date=2018-03-04 }} novorossia.pro, 2 March 2018.

Bloomberg, as well as other commentators, opined that both the Russian government and Trump administration, in their official statements, appeared to try obfuscating any Russian government role in the incident.[https://www.bloomberg.com/view/articles/2018-02-16/russia-attacked-u-s-troops-in-syria Don't Be Fooled: Russia Attacked U.S. Troops in Syria: Mattis gave Putin "plausible deniability" for a military assault that went badly awry.] {{Webarchive|url=https://web.archive.org/web/20180221101547/https://www.bloomberg.com/view/articles/2018-02-16/russia-attacked-u-s-troops-in-syria |date=2018-02-21 }} Bloomberg, 16 February 2018. Irek Murtazin of Novaya Gazeta and analyst Yury Barmin speculated that the Russian Ministry of Defence may have wittingly let the Wagner unit find itself in harm's way.{{cite web|author=Irek Murtazin|title="Вагнеровцев" списали в расход?|url=https://www.novayagazeta.ru/articles/2018/02/16/75527-zemlya-i-vozduh|date=16 February 2018|work=Novaya Gazeta|language=ru|author-link=Irek Murtazin|access-date=28 February 2018|archive-date=22 February 2018|archive-url=https://web.archive.org/web/20180222035934/https://www.novayagazeta.ru/articles/2018/02/16/75527-zemlya-i-vozduh|url-status=live}}

On 12 February 2018, Grigory Yavlinsky called on President Vladimir Putin to present an account of whether any Russian military forces had been involved in the battle.[http://www.newsru.com/russia/12feb2018/yavlinskiysyria.html Явлинский потребовал от Путина объяснить сообщения о гибели российских наемников в Сирии] {{Webarchive|url=https://web.archive.org/web/20180214155902/http://www.newsru.com/russia/12feb2018/yavlinskiysyria.html |date=2018-02-14 }} NEWSru, 12 February 2018.{{Cite news|url=https://edition.cnn.com/2018/02/13/middleeast/russians-killed-us-airstrikes-syria-intl/index.html|title=Several Russians killed in US airstrikes in Syria|author1=Tim Lister|author2=Mary Ilyushina|author3=Sebastian Shukla|work=CNN|access-date=2018-02-14|quote=Grigory Yavlinsky said: "If massive Russian casualties took place, then relevant officials ... must announce this to the country and find out who is responsible."|archive-date=2018-02-13|archive-url=https://web.archive.org/web/20180213230101/https://edition.cnn.com/2018/02/13/middleeast/russians-killed-us-airstrikes-syria-intl/index.html|url-status=live}}{{Cite news|url=https://meduza.io/news/2018/02/12/yavlinskiy-poprosil-putina-ob-yasnit-soobscheniya-o-gibeli-rossiyskih-naemnikov-v-sirii|title=Явлинский попросил Путина объяснить сообщения о гибели российских наемников в Сирии|work=Meduza|access-date=2018-02-14|language=ru-RU|archive-date=2018-02-15|archive-url=https://web.archive.org/web/20180215023320/https://meduza.io/news/2018/02/12/yavlinskiy-poprosil-putina-ob-yasnit-soobscheniya-o-gibeli-rossiyskih-naemnikov-v-sirii|url-status=live}} Meanwhile, Russia's government-run news agency TASS acknowledged, with reference to a Cossack organisation, the death in a battle near Deir ez-Zor of a Russian "volunteer", sotnik Vladimir Loginov, a resident of the Kaliningrad Region.[http://tass.ru/proisshestviya/4952035 Житель Калининградской области погиб в Сирии в районе Дейр-эз-Зора] {{Webarchive|url=https://web.archive.org/web/20180214125150/http://tass.ru/proisshestviya/4952035 |date=2018-02-14 }} TASS, 12 February 2018.

The news media also named four more Russians killed during the strike, including Kirill Ananiev, a veteran member of the banned National Bolshevik Party.[http://www.interfax.ru/world/599662 Казак Владимир Логинов и член партии "Другая Россия" Кирилл Ананьев погибли в Сирии] {{Webarchive|url=https://web.archive.org/web/20210421092519/https://www.interfax.ru/world/599662 |date=2021-04-21 }} Interfax, 12 February 2018.[https://www.reuters.com/article/us-mideast-crisis-syria-russia/russians-killed-in-clash-with-u-s-led-forces-in-syria-say-associates-idUSKBN1FW2DC Russians killed in clash with U.S.-led forces in Syria, say associates] {{Webarchive|url=https://web.archive.org/web/20210422024410/https://www.reuters.com/article/us-mideast-crisis-syria-russia/russians-killed-in-clash-with-u-s-led-forces-in-syria-say-associates-idUSKBN1FW2DC |date=2021-04-22 }} Reuters, 12 February 2018. News outlets also noted that Vladimir Putin abruptly cancelled most of his previously announced engagements scheduled for 12 and 13 February, his press service citing ill health, and instead had a secret conference with his top military chiefs;[http://www.bbc.com/russian/news-43051143 Путин заменил рабочие поездки на встречу с генералами. Возможно, из-за Сирии] {{Webarchive|url=https://web.archive.org/web/20180216182625/http://www.bbc.com/russian/news-43051143 |date=2018-02-16 }}

BBC, 13 February 2018.[https://www.independent.co.uk/news/world/europe/putin-health-russia-president-elections-cancel-public-appearances-strong-man-a8208681.html Putin cancels key appearances due to ill health for first time in years] {{Webarchive|url=https://web.archive.org/web/20180218073726/http://www.independent.co.uk/news/world/europe/putin-health-russia-president-elections-cancel-public-appearances-strong-man-a8208681.html |date=2018-02-18 }} The Independent, 13 February 2018. he also had a telephone conversation with U.S. president Donald Trump on 12 February, with no details revealed.[http://kremlin.ru/events/president/news/56848 Телефонный разговор с Президентом США Дональдом Трампом] {{Webarchive|url=https://web.archive.org/web/20180215022745/http://kremlin.ru/events/president/news/56848 |date=2018-02-15 }} kremlin.ru, 12 February 2018.{{Cite web|url=https://www.foxnews.com/politics/trump-putin-talk-palestinian-peace-efforts-north-koreas-nukes/|title=Trump, Putin talk Palestinian peace efforts, North Korea's nukes|publisher=Fox News}}

Russian politician Viktor Alksnis, authorised representative of Communist Party presidential election candidate Pavel Grudinin, voiced an opinion on Radio Liberty that the U.S. strike was designed as a demonstration of the U.S.'s military superiority and dominance in the region, and that it might have serious geopolitical consequences for Russia.[https://www.svoboda.org/a/29037435.html Зачем Кремлю "псы войны" на Евфрате?] {{Webarchive|url=https://web.archive.org/web/20180216084841/https://www.svoboda.org/a/29037435.html |date=2018-02-16 }} Radio Liberty, 13 February 2018.

On 14 February, presidential spokesperson Dmitry Peskov admitted the possibility that some Russian citizens who were not part of Russia's armed forces were in Syria, but dismissed reports of mass casualties as false.[http://www.interfax.ru/world/599909 Песков не исключил присутствия в Сирии граждан не из Вооруженных сил РФ] {{Webarchive|url=https://web.archive.org/web/20180214184814/http://www.interfax.ru/world/599909 |date=2018-02-14 }} Interfax, 14 February 2018. The following day, the Russian foreign ministry's spokesperson Maria Zakharova conceded that five Russian citizens might have been killed in the U.S. attack; she emphasized that they were not members of the Russian Armed Forces.[https://themoscowtimes.com/news/Kremlin-has-nothing-to-add-to-syria-deaths-denial-60525 Russia Acknowledges Possible Syria Deaths as Evidence of Mercenary Fatalities Mounts] {{Webarchive|url=https://web.archive.org/web/20180218073916/https://themoscowtimes.com/news/Kremlin-has-nothing-to-add-to-syria-deaths-denial-60525 |date=2018-02-18 }} The Moscow Times, 15 February 2018.[http://tass.ru/politika/4962156 Захарова: в Сирии могли погибнуть пять российских граждан, это не военнослужащие] {{Webarchive|url=https://web.archive.org/web/20180215232542/http://tass.ru/politika/4962156 |date=2018-02-15 }} TASS, 15 February 2018.

State Duma Defense Committee Chairman Vladimir Shamanov, citing reported casualties of Russian PMCs, said the Russian parliament was working on a bill that would regulate activities of private military contractors, which he said was necessary.[https://web.archive.org/web/20180214173502/https://www.washingtonpost.com/world/europe/russia-needs-law-on-private-contractors-lawmaker-says/2018/02/14/ac4cca6a-117c-11e8-a68c-e9374188170e_story.html Russia seeks to regulate private military contractors] The Washington Post, 14 February 2018.[http://tass.com/politics/989972 Russian MP demands government regulate private military companies] {{Webarchive|url=https://web.archive.org/web/20180217024038/http://tass.com/politics/989972 |date=2018-02-17 }} TASS, 14 February 2018.

On 16 February, Viktor Alksnis said that the preliminary figure of Russian fatalities in the strike, based on information from the relatives and friends, stood at 334, mainly the personnel of the 5th storm squadron; he also said that, according to his information, personnel of Russia's Special Operations Forces were also involved in "the raid" on 7 February. This was in contrast to CIT's earlier confirmation by name of no more than eight dead.[https://www.newsru.com/russia/16feb2018/gruz334.html Экс-депутат Госдумы заявил о гибели 334 россиян под ударом коалиции США в Сирии] {{Webarchive|url=https://web.archive.org/web/20180216172009/https://www.newsru.com/russia/16feb2018/gruz334.html |date=2018-02-16 }} NEWSru, 16 February 2018. On the same day, Russian Foreign Minister Sergey Lavrov in a Euronews channel interview said, "[The United States] seem to be seeking to isolate a vast part of the Syrian territory from the rest of the country in violation of Syria's sovereignty and territorial integrity."[http://tass.com/politics/990445 Lavrov stresses that US intends to carve up parts of Syria: The Russian top diplomat comments on the situation in Syria] {{Webarchive|url=https://web.archive.org/web/20180217082628/http://tass.com/politics/990445 |date=2018-02-17 }} TASS, 16 February 2018.[https://ria.ru/syria/20180216/1514789926.html?referrer_block=index_most_popular_4 США намерены огромный кусок Сирии обособить от страны, заявил Лавров] {{Webarchive|url=https://web.archive.org/web/20180217082636/https://ria.ru/syria/20180216/1514789926.html?referrer_block=index_most_popular_4 |date=2018-02-17 }} RIA Novosti, 16 February 2018. According to an insider source quoted on 19 February by Vedomosti, there were 50 citizens of Russia and Ukraine dead as a result of the U.S. strike.{{Cite web|url=https://novayagazeta.ru/news/2018/02/19/139621-vedomosti-rasskazali-o-50-pogibshih-v-sirii-naemnikah-iz-rossii-i-ukrainy|title=Новая газета - Novayagazeta.ru|website=Новая газета - Novayagazeta.ru|access-date=2020-05-21|archive-date=2021-03-09|archive-url=https://web.archive.org/web/20210309014107/https://novayagazeta.ru/news/2018/02/19/139621-vedomosti-rasskazali-o-50-pogibshih-v-sirii-naemnikah-iz-rossii-i-ukrainy|url-status=live}}[https://www.vedomosti.ru/opinion/quotes/2018/02/19/751363-rossiyane-prinyali Почему россияне приняли на себя американский удар] {{Webarchive|url=https://web.archive.org/web/20180221224029/https://www.vedomosti.ru/opinion/quotes/2018/02/19/751363-rossiyane-prinyali |date=2018-02-21 }} Vedomosti, 19 February 2018.

On 20 February 2018, the Russian foreign ministry released a statement which, while admitting that there had been citizens of Russia and "countries of the CIS" killed and wounded in the course of the "recent clash" in Syria, claimed that no Russian service members or their materiel had been involved in any way.[http://www.mid.ru/ru/foreign_policy/news/-/asset_publisher/cKNonkJE02Bw/content/id/3086874 Комментарий Департамента информации и печати МИД России об оказании медицинской помощи пострадавшим в Сирии россиянам] {{Webarchive|url=https://web.archive.org/web/20180220212639/http://www.mid.ru/ru/foreign_policy/news/-/asset_publisher/cKNonkJE02Bw/content/id/3086874 |date=2018-02-20 }} Russian FM, 20 February 2018.[http://tass.com/politics/990911 Russians injured in recent clash in Syria were not servicemen — Foreign Ministry] {{Webarchive|url=https://web.archive.org/web/20180221022915/http://tass.com/politics/990911 |date=2018-02-21 }} TASS, 20 February 2018. Following the statement, the foreign ministries of Belarus and Kazakhstan were reported to be checking if there were casualties among their countries' citizens, but stated they had no information to confirm that Belarusians or Kazakhstanis had been killed or wounded.[http://www.newsru.com/world/21feb2018/mfas.html МИДы Белоруссии и Казахстана проверяют, не попали ли их граждане под удар коалиции в Сирии] {{Webarchive|url=https://web.archive.org/web/20180221162157/http://www.newsru.com/world/21feb2018/mfas.html |date=2018-02-21 }} NEWSru, 21 February 2018.

In late February 2018, CNN quoted multiple Russian sources claiming that those seeking to publicise information about the casualties in the 7 February strike were being harassed and silenced, presumably by people loyal to Yevgeny Prigozhin.[https://edition.cnn.com/2018/02/23/europe/putin-chef-yevgeny-prigozhin/index.html Putin's 'chef' accused of trying to cover his tracks] {{Webarchive|url=https://web.archive.org/web/20180224171945/https://edition.cnn.com/2018/02/23/europe/putin-chef-yevgeny-prigozhin/index.html |date=2018-02-24 }} CNN, 23 February 2018.

Several Russian online news outlets, citing Syria's media and ex-KGB officer Igor Panarin, published unconfirmed reports that the Su-57 fighters, deployed to Syria since February 2017, had taken part in strikes against rebel targets in Eastern Ghouta, killing about ten U.S. personnel (military instructors) as well as other Western countries' instructors stationed in the rebel stronghold, despite the lack of known U.S. military presence in the region; the strikes were presented as retaliation for the U.S. attack at Khasham.[https://polit.info/389027-rossiiskie-su-57-nanesli-udar-po-boevikam-i-instruktoram-ssha-v-vostochnoi-gute-posle-ataki-na-chvk-vagnera Российские Су-57 нанесли удар по боевикам и инструкторам США в Восточной Гуте после атаки на ЧВК Вагнера] {{Webarchive|url=https://web.archive.org/web/20180405214815/https://polit.info/389027-rossiiskie-su-57-nanesli-udar-po-boevikam-i-instruktoram-ssha-v-vostochnoi-gute-posle-ataki-na-chvk-vagnera |date=2018-04-05 }} polit.info, 26 February 2018.[http://wh24.ru/groby-s-amerikanskimi-soldatami-otpravilis-iz-guty-domoj/ Гробы с американскими солдатами отправились из Гуты домой] {{Webarchive|url=https://web.archive.org/web/20180307082303/http://wh24.ru/groby-s-amerikanskimi-soldatami-otpravilis-iz-guty-domoj/ |date=2018-03-07 }} wh24.ru, 26 February 2018.[http://www.iarex.ru/news/56067.html Подтверждение: о серьезных потерях ЧВК США и Британии в Восточной Гуте] {{Webarchive|url=https://web.archive.org/web/20180305030146/http://www.iarex.ru/news/56067.html |date=2018-03-05 }} ИА REX, 1 March 2018. A short-term deployment of two Su-57s to Syria was officially confirmed by the Russian defence minister Sergey Shoygu on 1 March 2018.[https://tvzvezda.ru/news/opk/content/201803011617-3tfk.htm Новейшие истребители Су-57 прошли боевые испытания в Сирии - Шойгу] {{Webarchive|url=https://web.archive.org/web/20180304054910/https://tvzvezda.ru/news/opk/content/201803011617-3tfk.htm |date=2018-03-04 }} Zvezda, 1 March 2018.[http://tass.com/defense/992335 Su-57 fifth-generation fighter jets successfully tested in Syria] {{Webarchive|url=https://web.archive.org/web/20180302104100/http://tass.com/defense/992335 |date=2018-03-02 }} TASS, 1 March 2018. Earlier, Komsomolskaya Pravda military correspondent {{ill|Viktor Baranets|ru|Баранец, Виктор Николаевич|vertical-align=sup}} was cited as saying that according to his information, the Su-57s had done "excellent" work carrying out their mission in Eastern Ghouta.[https://ria.ru/radio_brief/20180226/1515284184.html "Русская линия". Военный эксперт об отправке в Сирию Су-57] {{Webarchive|url=https://web.archive.org/web/20180306023322/https://ria.ru/radio_brief/20180226/1515284184.html |date=2018-03-06 }} RIA Novosti, 26 February 2018.

On 12 April 2018, outgoing U.S. Central Intelligence Agency director Mike Pompeo, during his Senate hearing for the position of the United States Secretary of State, commented, "This administration announced a nuclear posture review that has put Russia on notice that we are going to recapitalize our deterrent force. In Syria, now, a handful of weeks ago the Russians met their match. A couple hundred Russians were killed."{{cite news|url=https://slate.com/news-and-politics/2018/04/pompeo-boasts-about-u-s-killing-a-couple-hundred-russians-in-syria.html|title=Pompeo Boasts About U.S. Killing "a Couple Hundred Russians" in Syria|work=Slate|date=12 April 2018|access-date=12 April 2018|archive-date=12 April 2018|archive-url=https://web.archive.org/web/20180412180524/https://slate.com/news-and-politics/2018/04/pompeo-boasts-about-u-s-killing-a-couple-hundred-russians-in-syria.html|url-status=live}}

The death of the Russian investigative journalist Maksim Borodin, who wrote about the deaths of mercenaries in Syria in mid-April 2018, was linked by the media to his publications about Wagner's casualties in the clash at Khasham.[https://www.bbc.com/news/world-europe-43781351 Russian reporter Borodin dead after mystery fall] {{Webarchive|url=https://web.archive.org/web/20180715072905/https://www.bbc.com/news/world-europe-43781351 |date=2018-07-15 }} BBC, 16 April 2018.

{{See also|Deir ez-Zor Governorate clashes}}

On 10 February 2018, a U.S. MQ-9 Reaper drone destroyed a T-72 tank of pro-government forces in an airstrike near the Al Tabiyeh gas field. The tank itself was not firing on the SDF and the coalition, but other elements in the formation were.[https://www.nbcnews.com/news/mideast/u-s-airstrike-destroys-russian-made-tank-used-pro-syria-n847576 U.S. airstrike destroys Russian-made tank used by pro-Syria forces] {{Webarchive|url=https://web.archive.org/web/20180213174515/https://www.nbcnews.com/news/mideast/u-s-airstrike-destroys-russian-made-tank-used-pro-syria-n847576 |date=2018-02-13 }} NBC News, 13 February 2018.{{cite web|url=https://www.reuters.com/article/us-mideast-crisis-usa-syria-tank/u-s-drone-destroys-russian-made-tank-in-syria-idUSKCN1FX2SJ|title=U.S. drone destroys Russian-made tank in Syria|author=Phil Stewart|publisher=Reuters|date=13 February 2018|access-date=14 February 2018|archive-date=1 April 2019|archive-url=https://web.archive.org/web/20190401030817/https://www.reuters.com/article/us-mideast-crisis-usa-syria-tank/u-s-drone-destroys-russian-made-tank-in-syria-idUSKCN1FX2SJ|url-status=live}}

On 2 March 2018, at least two pro-government fighters were reportedly killed by coalition air raids near Khasham.{{cite news|url=http://deirezzor24.net/archives/8054|title=صدام روسي أمريكي في ديرالزور أم جس نب؟|work=Deir Ez-Zour 24|date=2 March 2018|access-date=2 March 2018|archive-url=https://web.archive.org/web/20180303050638/http://deirezzor24.net/archives/8054|archive-date=3 March 2018|url-status=dead}}{{cite news|url=https://twitter.com/DeirEzzor24/status/969666692166057984|publisher=Twitter|date=2 March 2018|title=At least two fighters of Assad forces killed due US raids on their location by Khasham town.|access-date=2 March 2018|archive-date=13 December 2019|archive-url=https://web.archive.org/web/20191213205646/https://twitter.com/DeirEzzor24/status/969666692166057984|url-status=live}}

On 27 March 2018, U.S. officials, including U.S. Secretary of Defense James Mattis, said a contingent of pro-Syrian government forces and Russian "mercenaries" had again similarly amassed near coalition forces in Deir ez-Zor the week prior, but the potential confrontation was defused after the U.S. military contacted Russian officers. Mattis believed the forces were under Russian control, as the pro-government troops pulled back after U.S. forces spoke with their Russian counterparts.{{cite news|work=Reuters|date=27 March 2018|title=After brief buildup, pro-Syria government forces move away from U.S. troops|url=https://uk.reuters.com/article/uk-mideast-crisis-usa-syria/after-brief-buildup-pro-syria-government-forces-move-away-from-u-s-troops-idUKKBN1H32SR|access-date=28 March 2018|archive-date=27 March 2018|archive-url=https://web.archive.org/web/20180327230052/https://uk.reuters.com/article/uk-mideast-crisis-usa-syria/after-brief-buildup-pro-syria-government-forces-move-away-from-u-s-troops-idUKKBN1H32SR|url-status=dead}}

On 29 April 2018, pro-government forces launched an assault against four SDF villages on the Euphrates, initially capturing them. However, the SDF later retook the villages, with local sources claiming coalition aircraft bombed pro-government positions in response.{{citation needed|date=November 2018}}

On 11 May 2018, the coalition stated that SDF units responded to artillery fire from an unknown source on the outskirts of Deir ez-Zor; the SDF returned fire, leading to the destruction of one enemy artillery piece. No casualties were reported on either side of the engagement.{{cite news|url=http://www.kurdistan24.net/en/news/731b95bb-bb46-4f49-b51d-6b1a322f733d|title=SDF returns fire after surprise artillery attack near Deir al-Zor: Coalition|date=11 May 2018|publisher=Kurdistan 24|access-date=11 May 2018|archive-date=11 May 2018|archive-url=https://web.archive.org/web/20180511204331/http://www.kurdistan24.net/en/news/731b95bb-bb46-4f49-b51d-6b1a322f733d|url-status=live}} The coalition discussed the development with Russian counterparts via the established deconfliction line.{{Cite web|url=https://www.defense.gov/News/News-Stories/Article/Article/1518504/syrian-democratic-forces-return-fire-in-self-defense/|title=Syrian Democratic Forces Return Fire in Self-Defense|publisher=U.S. Department of Defense|access-date=2020-05-21|archive-date=2020-07-25|archive-url=https://web.archive.org/web/20200725023000/https://www.defense.gov/Explore/News/Article/Article/1518504/syrian-democratic-forces-return-fire-in-self-defense/|url-status=live}}

• September 2016 Deir ez-Zor air raid
• Tokhar airstrike
• 2017 al-Jinah airstrike
• 2017 Shayrat missile strike
• Death of Maksim Borodin
• American-led intervention in the Syrian civil war
• Iranian involvement in the Syrian civil war
• Russian military intervention in the Syrian civil war
• Timber Sycamore (CIA)
• Soviet air intervention in the Korean War

{{Reflist|2}}

{{Syrian Civil War}}

{{Russia–United States relations}}

{{DEFAULTSORT:Khasham, Battle of}}

Category:American airstrikes during the Syrian civil war

Category:Battles of the Syrian civil war in 2018

Category:February 2018 in Syria

Category:2018 in Russian politics

Category:2018 in American politics

Category:Russia–United States military relations

Category:Deir ez-Zor Governorate in the Syrian civil war

Category:Military operations of the Syrian civil war involving the Syrian Democratic Forces

Category:Military operations of the Syrian civil war involving Russia

Category:Military operations of the Syrian civil war involving the United States

Category:Military operations of the Syrian civil war involving the Syrian government

Category:Wagner Group activities in Syria

Category:Battles involving the Wagner Group