U.S. Air Force Col. Heather Blackwell, 81st Training Wing commander, stands at parade rest 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. Tullos assumed command of the Second Air Force from Maj. Gen. Timothy Leahy. (U.S. Air Force photo by Airman 1st Class Spencer Tobler)
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