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Senior Airman Robert Klassen, 35th Fighter Generation Squadron F-16 Fighting Falcon aerospace propulsion journeyman, attaches a fuel hose to refuel the aircraft during a routine hot pit refueling at Kunsan Air Base, Republic of Korea, Jan. 17, 2024. Hot pit refueling is a procedure where aircraft receive fuel while keeping their engines running, allowing the aircraft to return to flight faster by minimizing time spent on the ground. (U.S. Air Force photo by Staff Sgt. Samuel Earick)