U.S. Air Force Capt. Richard Hall, a pilot assigned to the 91st Air Refueling Squadron, reviews a checklist prior to takeoff from MacDill Air Force Base, Fla., Sept. 30, 2020. Daily flight training missions are conducted at MacDill, so that aircrew can maintain proficiency and readiness to execute the many missions of KC-135 Stratotanker aircraft. (U.S. Air Force photo by Senior Airman Shannon Bowman)