Restrepo...

Directed by Sebastian Junger (A Perfect Storm) and Tim Hetherington, Restrepo is an entirely sobering and numbing documentary that follows an American platoon based in the Korangal Valley of Afghanistan. An experimental film in that the cameras never leave the valley, and there's no interviews with generals or diplomats, Restrepo leaves you wondering how on earth anyone can go through this, and return to 'normal' life.
Clip from You Tube.