"4th Air Division" . . . . . . "4th Strategic Aerospace Division" . . "4th Bombardment Wing (later 4th Air Division)" . . . . . . "1940" . . . . . . . "4th Army Air Force" . "4th Bombardment Wing" . . . . . . . "Fourth Army Air Force" . . . "25th Anti-Aircraft Division" . . . . "4th Flying Division" . . . . . . "165px" . . . . . . "4th Fighter Wing" . "Command of strategic strike forces" . . "4th Air (later, 4th Strategic Aerospace)" . . . . . "4th Combat Bombardment Wing" . . . "4th Air Division (Japan" . "4th Combat Bomb Wing" . "4th Aviation Bomber Division" . "4th Air Division" . . "4th Air Division (formerly, 4 Combat Bombardment; 4 Bombardment Wing)" . . . . . . . . . . . "4th Strategic Missile Division" . .