Gen. Hawk Carlisle, the commander of Air Combat Command, speaks at the arrival ceremony for the F-35 Lightning II at Hill Air Force Base, Utah, Oct. 14, 2015. The ceremony marked the formal beginning of F-35 operations at Hill, and commemorated the arrival of the first combat-coded F-35 aircraft which arrived at Hill Sept. 2. (U.S. Air Force photo/R. Nial Bradshaw)