U.S. Air Force Staff Sgt. Jon Peek, 58th Aircraft Maintenance Unit crew chief, left, and Lt. Col. Jared Santos, 513th Electronic Warfare Squadron commander, inspect an F-35A Lightning II assigned to the 33rd Fighter Wing prior to a sortie Nov. 14, 2017, at Eglin Air Force Base, Fla. The 33 FW supported Checkered Flag 18-1 from home station. Checkered Flag is a large scale air-to-air only exercise that emphasizes the execution and production of tactics between fourth and fifth generation aircraft. (U.S. Air Force photo by Staff Sgt. Peter Thompson/Released)