Immortal Sergeant

Immortal Sergeant is a 1943 American war film directed by John M. Stahl for 20th Century Fox. Set in the North African desert during World War II, it stars Henry Fonda as a corporal lacking in confidence in both love and war, Maureen OHara as his girlfriend, and Thomas Mitchell as the title character. The film was based on the novel of the same name by John Brophy.

Spence leads the remaining three men towards an oasis. Before they can reach it though, a transport plane lands and disgorges German soldiers who set up a base. After sneaking in to steal badly needed food and water, Spence has to assert his leadership when one of his men advocates surrendering. Instead, Spence leads them in a surprise attack under the cover of a sandstorm. The British emerge victorious, though one man is killed and Spence is wounded.The corporal comes to in a Cairo hospital and finds he is to be given a medal and promoted to lieutenant. His newfound assertiveness extends to his personal life. He proposes to his girlfriend Valentine Maureen OHara, whom he had thought of in flashbacks throughout his ordeal. ........

Source: Wikipedia