U.S. Air Force Maj. Gen. Timothy Leahy, Second Air Force commander, delivers remarks during the Second Air Force change of command ceremony on Keesler Air Force Base, Mississippi, Aug. 29, 2019. The ceremony is a symbol of command being exchanged from one commander to the next. Leahy relinquished command of the Second Air Force to Maj. Gen. Andrea Tullos. (U.S. Air Force photo by Kemberly Groue)