Has Escape from Colditz* been mentioned yet? 
*I must say, I do prefer the alternate title I heard many years ago… :o
Mister Roberts?
(There was a sequel made in 1964 or '65:*** Ensign Pulver***, with Robert Walker, Jr (aka “Charlie X”), Walter Matthau, and Burl Ives. I saw it with my dad that summer in Chicago.
No Man Is an Island with Jeffrey Hunter trapped in the Philippines under Japanese occupation.
Heaven Knows, Mr Allison. Robert Mitchum and Deborah Kerr trapped on an island under Japanese occupation.
Three Came Home with Claudette Colbert. Allied women in a Japanese internment camp.
None but the Brave with Frank Sinatra and Clint Walker. US Marines coexist with Japanese troops on a tropical island. (“That was-a my Kieko. She was-a rovrier dan de brossoms!”)
Merry Christmas, Mr Lawrence with David Bowie. Allied soldiers in a Japanese POW camp.
Battle Cry Battle Cry (1955) - IMDb (1955)
One more to throw out there
A Soldier’s Story A Soldier's Story (1984) - IMDb
Yes! Good movie. Made before WWII even began, with an opening scene that anticipates Hitler’s death, so it almost qualifies as speculative fiction.
Do Japanese Samurai movies count? Then I nominate Ran.
The Eagle Has Landed, which IIRC had Robert Duval and Michael Caine as German officers.
I was coming in to say the same thing, except I was going to say “John Wayne plaing John Wayne.”
I’d also like to add in Midway.
A Very Long Engagement
Gallipoli (not sure if it was already nominated)
Not a ‘war’ movie but a ‘military’ movie The Right Stuff.
Is there any point to naming movies that almost all of us would call ‘awful?’
Beneath Hill 60, an excelent movie about the tunnel wars that heppened under the trenches in WWI.
I’ve taken one acting class in my life and my teacher was a bit player in that movie. At the end of the semester, I cut together some clips from his movies into the movie-version scenes that we performed. Blew him away.
I came here to say Glory & The Hurt Locker. Three Kings is one of my all-time favorite movies, but it’s barely a war movie.
I think it counts. It’s about the messy aftermath of a messy war. And it’s also one of my favorite war movies.
Has anyone nominated Come and See yet?
If not, I will. One of the all-time great war movies - though a throughly gut-wrenching movie to watch.
The Thin Red Line.
Das Boot.
I have removed this one.
I need help with this one, please.
Was there a “war movie” with this title?
I couldn’t locate this one.
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Thanks for the many contributions we now have over 200 titles to vote on somehow 
Before I post an update, I’d like help on these just mentioned titles, and any others that may not have been mentioned yet.
One thing is for sure: we now have a hefty reference source for War Movies!
Thanks again, y’all!
Here are the intro soundtracks for those shows:
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Do you know of other such TV programs devoted to the Military Branches?
[Quote=terentii]
Crossbow and Overcast, about the Allied campaign against Germany’s V-weapons.
[/quote]
[Quote=Zeldar]
I couldn’t locate this one.
[/QUOTE]
I believe terentii was referring to Operation Crossbow (1965), with George Peppard, Sophia Loren and Trevor Howard.
Oh, and I see no one has mentioned Valkyrie (2008), a pretty decent recounting of the July 20 plot against Hitler:
I was referring to this Excalibur- Arthur, knights, swords, etc. It has armies fighting battles, so it seems like a war movie to me.
You wanted a wide net, right? Do you want to take this opportunity to exclude fantasy or sci-fi war movies? Otherwise, you can add Star Wars and Lord of the Rings and a million others, too.