"Combat America" is one of two documentary films that Clark Gable made while serving in the U.S. Army Air Forces during World War II. The opening scene shows his orders."First Lieutenant Clark Gable is hereby directed to proceed to England as outlined verbally to him for the purpose of making a combat film dealing primarily with the combat phase of aerial gunnery." The orders were signed by H.H."Hap" Arnold, who was commanding general of the Army Air Forces which would become the U.S. Air Force after World War II.A documentary recounting the experiences of the 351st Bombardment Group of the U.S. Army Air Forces, based in England during the Second World War . The group's air and ground crews are followed through a number of bombing missions over Hitler's Germany.