U.S. Air Force Brig. Gen. Jon Ellis, the mobilization assistant to the Director of Operations at Headquarters Global Strike Command, administers the oath of office to Col. Robert VanHoy during a promotion ceremony at Barksdale Air Force Base, La. on May 15, 2016. VanHoy is the commander of the 93rd Bomb Squadron as well as a command pilot with over 4,000 flight hours. (U.S. Air Force photo by Master Sgt. Dachelle Melville/Released)