Here's my top 11 (like Spinal Tap I couldn't stop at 10) in no particular order:
Twelve O'Clock High
Gregory Peck as the commander of a squadron of fliers during World War II who is haunted by his responsibilities.
The Red Badge of Courage
Real-life war hero Audie Murphy stars in this exemplary adaption of the classic novel. This movie will stay with you long after the last reel finishes.
Paths of Glory
Stanley Kubrick's intense view of a general's flawed battle plan leading to disaster.
The Tin Drum (or Die Blechtrommel)
The much boycotted film. The story of a young boy who sees what Nazis and other adults are capable of and refuses to grow up (literally, he stays a little boy).
Johnny Got His Gun
The adaptation of Dalton Trumbo's novel. Sidenote: Metallica based their epic song "One" on this film.
Spielberg is a master, and even though he's made his share of "popcorn" movies, this film shows us how one man can make a difference, even in the most trying of times.
Gone with the Wind
Still ranking as America’s most beloved Civil War epic.
Grave of the Fireflies (or Hotaru no haka)
So well constructed that you will soon forget that it’s “only” animation.
Dr. Strangelove (or How I Learned to Stop Worrying And Love The Bomb)
Kubrick scores again! His absurd, hilarious and brilliant film that pokes fun of the Cold War.
Destined to be viewed and re-examined for many decades to come.