I'm ignoring deleted scenes from Predator 2 for this one.
Why is Anna even running towards chopper once she's set free to run away? Isn't it her turf and she can basically run home in the opposite direction while the Predator is busy with Dutch?
Anyways, after all the events she flies away with Dutch and the general, but what do they do with her after that? The whole conflict she was involved with suddenly doesn't seem important - they had an extraterrestrial hunting them! All Earthly conflicts are suddenly trivial.
Would they still question her about the events prior to "a f**king alien" killing them one by one? Who would even remember why they were there in the first place...they just encountered an alien life form! This is huge! This is the biggest news ever. Guerilla warfare? Get the hell out of here with that!
So she returns to US and confirms Dutch's story. What next? Fly her back home? Keep her a prisoner...after just surviving hell with Dutch?