90th Munitions Squadron welcomes new commander Published June 30, 2017 By Lt. Col. Glenn Robertson 90th Missile Wing Public Affairs F.E. WARREN AIR FORCE BASE, Wyo. -- Major Luke Stover received command of the 90th Munitions Squadron during a change of command here June 30, 2017. Major Kevin Barber, outgoing commander, will retire from the Air Force. A change-of-command ceremony is a tradition that represents a formal transfer of authority and responsibility from the outgoing commander to the incoming commander.