The Battle of Conoco Fields, also known as the Battle of Khasham, was one of the rare occasions U.S. and Russian (mercenary) forces went toe to toe. The battle began as a force of some 500 Syrian and Russian Wagner PMC fighters supported by armour and artillery launched an assault on a joint SDF/U.S. special forces base at the Conoco gas plant located near the city of Deir ez-Zor. As the Wagner-led force pushed their advance, U.S. forces responded with a series of air and ground strikes. U.S. forces were reportedly in constant contact with a Russian liaison officer posted in Deir ez-Zor throughout the engagement, and only opened fire after they had received assurances that no regular Russian forces were present. The engagement lasted well over three hours, leaving up to 100 pro-government forces dead, including around a dozen Wagner fighters, with no U.S./SDF losses in return. In May 2023, Wagner chief Yevgeny Prigozhin detailed his version of events of what occured during the battle, which certainly makes for an interesting insight into ''the first deadly clash between citizens of Russia and the United States since the Cold War".
The artillery barrage was so intense that the American commandos dived into foxholes for protection, emerging covered in flying dirt and debris to fire back at a column of tanks advancing under the heavy shelling. It was the opening salvo in a nearly four-hour assault in February by around 500 pro-Syrian government forces — including Russian mercenaries — that threatened to inflame already-simmering tensions between Washington and Moscow.
In the end, 200 to 300 of the attacking fighters were killed. The others retreated under merciless airstrikes from the United States, returning later to retrieve their battlefield dead. None of the Americans at the small outpost in eastern Syria — about 40 by the end of the firefight — were harmed.
The details of the Feb. 7 firefight were gleaned from interviews and documents newly obtained by The New York Times. They provide the Pentagon’s first public on-the-ground accounting of one of the single bloodiest battles the American military has faced in Syria since deploying to fight the Islamic State.
The firefight was described by the Pentagon as an act of self-defense against a unit of pro-Syrian government forces. In interviews, United States military officials said they had watched — with dread — hundreds of approaching rival troops, vehicles and artillery pieces in the week leading up to the attack.
Романовский и Трудов