394th Combat Training Squadron
The 394th Combat Training Squadron was a United States Air Force unit assigned to the 509th Operations Group until inactivated on 13 April 2018. It was stationed at Whiteman Air Force Base, Missouri. The mission of the squadron was to train Northrop Grumman B-2 Spirit aircrews, a mission now executed by the 13th Bomb Squadron. The 394th is the fourth oldest squadron in the United States Air Force. Its history dated to 5 May 1917 as the 4th Aero Squadron.