A U.S. Air Force KC-135 Stratotanker aircraft assigned to the 379th Air Expeditionary Wing is refueled during a hot refueling training scenario at Al Udeid Air Base, Qatar, Sept. 21, 2020. Personnel from the 379th Expeditionary Aircraft Maintenance Squadron, 379th Expeditionary Logistics Readiness Squadron and 340th Expeditionary Air Refueling Squadron attended the training. The certification they receive will enable personnel to refuel a KC-135 while one or more engines run. (U.S. Air Force photo by Staff Sgt. Heather Fejerang)