Getting bombed by the USA certainly isn't winning "our boys" any friends over there. Still, maybe the USA can be believed to have "accidentally" dropped those bombs just like elsewhere, though I'm sure that's little consolation.
BONUS: Looks like the Russians may have had an accident of their own with a UN aid convoy heading into besieged Aleppo. Seems mighty close to a Causus Belli, things are getting very dangerous. The Russians certainly are taking the bombing of Syrian troops seriously: