U.S. Air Force Gen. Herbert “Hawk” Carlisle, commander of Air Combat Command, prepares for his final flight in an F-15C Eagle at Joint Base Langley-Eustis, Va., March 9, 2017. During Carlisle’s two year tour as the ACC commander, he was responsible for organizing, training, equipping and maintaining combat-ready forces for rapid deployment and employment while ensuring strategic air defense forces were ready to meet the challenges of peacetime air sovereignty and wartime defense. (U.S. Air Force photo/Staff Sgt. Natasha Stannard)