Air Force Cap Christmas Ornament 32379 Old World Christmas Introduced 2019 Size: Approx. 2 X 3 X 3.25" Includes Free Gift Box (may be plain box) Made of mouth-blown, hand-painted glass The United States Air Force is the aerial and space warfare service of the Armed Forces. Established in 1907 as part of the Army, the Air Force was formed as a separate branch in 1947. As the largest and most technologically advanced branch air force in the world, servicemen and women proudly wear their caps.