<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> "The U.S. Air Force" is the official song of the United States Air Force . </P> <P> Originally, the song was titled "Army Air Corps". Robert MacArthur Crawford wrote the initial first verse and the basic melody line in May of 1939 . During World War II, the service was renamed "Army Air Force", and the song title changed to agree . </P> <P> In 1947, when the Air Force became a separate service, the song was retitled, "The U.S. Air Force". </P>

Off we go into the wild blue yonder song