U.S. Air Force Gen. Hawk Carlisle, commander of Air Combat Command, listens as Tech Sgt. Arik Wexler, 1st Component Maintenance Squadron, speaks about maintenance operations at Langley Air Force Base, Va., March 13, 2015. Carlisle visited various units that enable Joint Base Langley-Eustis to provide mission-ready warfighters to support global military operations. (U.S. Air Force photo by Staff Sgt. Natasha Stannard/Released)