Restrepo nor Armadillo really stuck with me. I'll admit I've seen way too many of these kinds of documentaries, even to the point of not being able to tell them apart. The PBS ones are quite good. Two that stands out of the top of my head is Blood and Dust and Bulletproof Salesman, the later being mostly about Iraq.
I think the nature of PBS's regulatory environment makes it tough for them to "tell a true war story," to borrow Wolf's words. This was even apparent in their re-airing of Armadillo, the version that was broadcast on the same channel as Sesame Street was different than the bluray/dvd version.
Err, someone emailed me about the "wolf reference." The reference was to The Things They Carried by Tim O'brien and not to a work by Tobias Wolff whose name I spelled incorrectly.
http://www.aljazeera.com/programmes/peopleandpower/2011/09/2... http://www.imdb.com/title/tt1186201/