Off my head good war films
A Bridge Too Far
The Longest War
12 O'Clock High (Peck's Best Actor award)
Pork Chop Hill
Paths of Glory (of course)
Dr. Strangelove (duh)
Full Metal Jacket (completes Kubrick trio)
Never So Few (Sinatra with weird beard, McQueen stole the show)
The Sand Pebbles (McQueen's only nomination)
Platoon
Adventure/Drama with war background.
Stalaq 17
Bridge On The River Kwai
The Great Escape
The Guns of Navarone (and its sequel, yes sequel)
Kelly's Heroes
Heartbreak Ridge (most awesome Eastwood one-liners ever)
Where Eagles Dare
The Eagle has landed
Three Kings (kinda remake of Kelly)
The Young Lions (Clift = awesome, brando = suck)
M*A*S*H
Might have missed out some, and yes, not too fond of Spielberg's war films.