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U.S. Air Force maintenance Airmen board a commercial KDC‐10 tanker aircraft prior to take‐ off at Osan Air Base, Republic of Korea, Nov. 6, 2023. The aircraft can carry 247,000 pounds of fuel for refueling plus up to 100,000 pounds of freight or passenger payload. This event was a part of a proof-of-concept exercise to use contracted aerial refueling to support U.S. Air Force fighter aircraft. (U.S. Air Force photo by Staff Sgt. Kelsea Caballero)