At first i also thought the movie will be pure propaganda, but it just shows the situation from the invaders perspective, and the author doesnt try to put his ideas in your head.
It rly bothered me though, how they put Bulgarian music in the beginning of the movie and try to pass it for Afgan or w/e. It is a really meaningful song, something close to the national anthem. So thats kind of disturbing.
As for the whole "americans liberate us from the bad talibans, iraqis" or whatever i also have much to say but i better stfu...