A KC-135 Stratotanker, assigned to the Arizona Air National Guard, 161st Air Fueling Wing, refuels an F-35A Lighting II, assigned to the 63rd Fighter Squadron, at Luke Air Force Base, Ariz., Aug. 27, 2019, near Phoenix. Pilots from the 63rd FS faced-off in the Panther Beast competition in which they flew 50 miles to acquire and destroy 6 to 12 targets over a 45-minute period. (U.S. Air Force photo by Airman 1st Class Leala Marquez)