The battle in Syria that looms behind Wagner’s rebellion
Washington Post
The single bloodiest clash between U.S. and Russian forces since the Cold War took place in early February 2018. The mercenaries involved belonged to the Wagner Group, led by the now-exiled Yevgeniy Prigozhin.
https://www.washingtonpost.com/world/2023/06/30/wagner-syria-russia-battle-united-states/