USA

A Farewell to Arms (1932)
With Helen Hayes & Gary Cooper
A Farewell to Arms (1957)
With Jennifer Jones & Rock Hudson
Force of Arms (1951)
Updating of "A Farewell to Arms" (with William Holden)
Sergeant York (1941)
American World War I hero, 1918
Broken Lullaby (1932)
Young French soldier in WW I is overcome with guilt when he kills a German soldier who is very much like himself
A Farewell to Arms (1932)
With Helen Hayes & Gary Cooper
A Farewell to Arms (1957)
With Jennifer Jones & Rock Hudson
Force of Arms (1951)
Updating of "A Farewell to Arms" (with William Holden)
In Love and War (1996)
True story behind "A Farewell to Arms" with Sandra Bullock and Chris O'Donnell
Many Wars Ago (1970)
Anti-war movie about Italian mutineers in the battle against the Austrians in the Alps
The Great War (1959)
The Italian Army fought against the Austrians during World War
Yankee Doodle Dandy (1942)
1906-1917, American patriotic popular music composer George M. Cohan
The Fighting 69th (1940)
Irish-American unit sent to fight in WWI
Company K (2004)
Man struggles with writing a history of his US Marine Corps company in WWI
The Yanks are Coming (1974)
College buddies in France
The Lost Battalion (2001)
Americans caught behind enemy lines, Argonne Forest, 1918 (October)
Elizabeth of Ladymead (1948)
Four women in four different wars: Crimean War, Boer War, WWI and WWII