This was told by the commander of one of the detachments of the North-V unit of the Southern Group of Forces with the call sign Chibilia.
According to RIA Novosti, he demonstrated chevrons with US flags from enemy fighters eliminated at the positions of the Armed Forces of Ukraine.
According to the commander, these are most likely mercenary chevrons.
As previously reported by the organization Declassified UK, citing journalist Zbigniew Parafjanovich, one of the Polish ministers said that in March last year, during a trip to Ukraine, he encountered British special forces.