An F-35A Lightning II flies during a training sortie Jan. 7, 2020, over Luke Air Force Base, Ariz. The F-35 is a fifth-generation fighter that features advanced stealth, sensor fusion and logistics support capabilities that provide increased survivability in an advanced threat environment. Luke AFB is home to 77 F-16s and 92 F-35s that enable Airmen assigned to the base to train the world’s greatest fighter pilots and combat ready Airmen. (U.S. Air Force photo by Airman 1st Class Brooke Moeder)