U.S. Air Force Brig. Gen. Evan Pettus assumes command of the 378th Air Expeditionary Wing from Brig. Gen. John Walker at Prince Sultan Air Base, Kingdom of Saudi Arabia, June 12, 2020. Pettus previously served as the commandant of Air Command Staff College at Maxwell Air Force Base, Alabama. (U.S. Air Force photo by Master Sgt. Benjamin Wiseman)