U.S. Air Force Master Sgt. Corey Palmer, 914th Air Refueling Wing in-flight refueling specialist, works the boom of a KC-135 Stratotanker during a temporary duty assignment at Barksdale Air Force Base, Louisiana Oct. 16, 2021. Palmer, who started his career in 1988 as a B-52 Stratofortress tail gunner, was able to refuel the bomber for the first time during the TDY. (U.S. Air Force photo by Staff Sgt. Tambri Cason)