Watch The Air Force Story for Free: How to Stream the Movie Online at 123Movies. . The fascinating history of the U.S. Air Force comes to life via vintage footage culled from official Air Force newsreels that were created to educate the public during wartime. Formed in World War I as a tiny airborne offshoot of the Army's American Expeditionary Force, the division subsequently grew into its own armed services branch and became the largest modern air force in the world.