Why were the Delta Force pretending to be French?
They were using a Eurocopter Panther as their helicopter of choice in this film which the French Navy uses and not the US Army:
https://en.m.wikipedia.org/wiki/Eurocopter_AS565_Panther
Then they were using the French built Famas assault rifle which is the French Armed Forces weapon of choice:
https://en.m.wikipedia.org/wiki/FAMAS#Users
Of course then the Delta Force tops it off by wearing berets to complete the French look. Yes, I know other US Special Forces like the Green Berets do wear berets sometimes in combat, but the Delta Force seemed like they were trying to be French in this film.
What's even more funny is the bad guys used M16s and the fictional San Carlos Army used Huey helicopters!
Thankfully Chuck carries his trusty M1911 with him, it can't be all French!