An F-35A Lightning II, assigned to the 61st Fighter Squadron, flies during a sortie Oct. 28, 2019, at Luke Air Force Base, Ariz. The flight is the 35,000th F-35 sortie flown at Luke AFB since F-35 flight operations began in 2014. The F-35A is a fifth generation, multi-role fighter jet that can reach speeds up to Mach 1.6. (U.S. Air Force photo by