U.S. Air Force Senior Airman Andre McClain, 171st Air Refueling Squadron boom operator, prepares a KC-135 Stratotanker’s boom to refuel aircraft during Saber Strike 18 June 8, 2018. Boom operators are responsible for being the pilots’ eyes at the back of the aircraft as well as operating the boom during refueling missions. (U.S. Air Force photo by Staff Sgt. Jimmie D. Pike)