After reading this thread I'd have to say no.
Also, if it were just in Iraq, but it's like that everywhere. A few years ago an American fighter pilot fucked up big time. He snapped the cable of a cable car while flying much too low in the Italian Alps. The car of course fell quite a long way, killing several people. I don't remember exactly whether the pilot ever was trialed, but if he was he wasn't convicted.
And that was Italy, member of the NATO, with a more or less functioning judiciary system, not Iraq or Afghanistan.