Beau Geste (1939)
When three brothers join the Foreign Legion to escape a troubled past, they find themselves trapped under the command of a sadistic sergeant deep in the scorching Sahara. Now the brothers must fight for their lives as they plot mutiny against tyranny and defend a desert fortress against a brutal enemy. based on novel or book, brother, foreign legion, soldier, cruelty, desert, drill instructor, north africa, military unit, sapphire, protective brothers, drill sergeant, military fort, stolen jewel, brothers-in-arms
ETC.
