though the US says that the United States also issued a warning to Russians to stay away from the strikes area, given what the US knew about Russian engagement in the area at the time, it seems clear that Russian military intelligence were also aware of the strike to avoid friendly casualties on the battlefield. The pair of marines that took a sniper shot aimed at a top Russian official had the misfortune of being injured, Russian intelligence would then have known the identity of the snipers, unless they also tried to conceal that, in which case the residents of Tel Abyad would also have known the identify of the shooters. Indeed, one of the Marines that took the shot told the US he had identified the snipers as members of the Wagner group, which was monitoring that site while waiting to join the battle in Syria. US intelligence knew that the Russians had helicopters with audio-video capability waiting at the base for Wagner team to fly out. Perhaps there is a record of the audio-video feeds from that area waiting in intelligence files, in which case the USA knows what took place. And given that the soldiers that shot the snipers were not injured, presumably they are not as afraid of the US soldiers and brigades as they could be of the Wagner group they were waiting for. In fact, that the Wagner group felt it was necessary to send a detachment of soldiers and helicopters to investigate the sniper fire may show the group felt the sniper fire had come from the US soldiers.
the US military had long urged the establishment of a firm and stable mechanism to resolve the status of millions of Syrian refugees, to remove foreign terrorist groups from the Syrian battlefield, and to safely return the refugees and get them to northern Syria where they could be vetted and documented. The US, Russia, and all major global powers have long kept their officials under close surveillance (Krauthammer 2017 ), and given the amount of data they were in on the situation, it seems likely that they had already made a definitive plan for how the remaining US forces in Syria would leave, how the refugees would be safely returned, and how all parties would work to cover their tracks.