A Bridge Too Far
Tora! Tora! Tora!
Band of Brothers (series but still awesome none the less)
The Great Escape (Steve Mother Fucking McQueen)
The Thin Red Line
Gallipoli
Pearl Harbor OBVIOUSLY... Just kidding.
Plenty more but those stand out in my mind especially A Bridge Too Far, such an amazing movie.
Oh and the one where Christian Bale plays Vietnam POW Deter Dengler, I can't recall the title but it's an amazing movie as well.