A crew chief with the 388th Fighter Wing marshals an F-35A prior to take off from Hill Air Force Base, Utah, the evening of Aug. 20, 2019, as the active duty 388th and reserve 419th Fighter Wings conducted local night flying operations. The wings are required to train at night to maintain their readiness and all-weather capabilities. Increased flying also provides a valuable opportunity to evaluate aircraft maintenance resiliency and operational agility. (U.S. Air Force photo by R. Nial Bradshaw)