According to the Ministry of Defence of the Russian Federation US Special Operations Forces (SOF) units enable US-backed Syrian Democratic Forces (SDF) units to smoothly advance through the ISIS formations. Facing no resistance of the ISIS militants, the SDF units are advancing along the left shore of the #Euphrates towards Deir ez-Zor. The aerial photos made on September 8-12 over the ISIS locations recorded a large number of American #Hummer vehicles, which are in service with the America's SOF. The shots clearly show the US SOF units located at strongholds that had been equipped by the ISIS terrorists. Though there is no evidence of assault, struggle or any US-led coalition airstrikes to drive out the militants. Despite that the US strongholds being located in the ISIS areas, no screening patrol has been organized at them. This suggests that the US troops feel safe in terrorist controlled regions.