Jarhead

The 2005 release casts "Jake Gyllenhaal" as Lance Corporal Anthony Swofford who joins the US Marines and is posted to Iraq.
The marine soldiers call themselves Jarheads. The movie is narrated by Anthony. Instead of the war, the movie shows the pre-war settlements of soldiers on the battlefields and their state of mind. It shows how they live in deserts and wait for the war to begin, patrolling procedures, their companionships, how they build their morale and stabilize their state of mind. At the end the war only lasts 4 days for their company and they return back. Thus they live in the desert and prepare themselves not for the war but their life after war.
It is a must watch for anyone who wishes to know the life at the actual battle site.