U.S. Air Force Brig. Gen. Jon Ellis, the mobilization assistant to the Director of Operations, Headquarters Air Force Global Strike Command, presides over the promotion ceremony for Col. Robert Burgess, the commander of the 307th Operations Group. Burgess is promoted to the rank of colonel in a ceremony with his family and friends on Barksdale Air Force Base, La. on March 4, 2016. (U.S. Air Force photo by Master Sgt. Dachelle Melville/Released)