'Gung Ho!': The Story of Carlson's Makin Island Raiders (1943)

Seven weeks after Pearl Harbor, volunteers form the new 2nd Marine Raider Battalion whose purpose is to raid Japanese-held islands. The men selected come from different walks of life but have toughness in common. Under command of Colonel 'Thorwald', they're trained in all imaginable forms of combat. Then, after a perilous submarine journey, they face a daunting first mission: to annihilate the much larger Japanese garrison on Makin Island, in a lengthy battle sequence.