U.S. Air Force mobile distribution operators from the 379th Air Expeditionary Logistics Readiness Squadron participate in a KC-135 Stratotanker aircraft hot refueling training scenario at Al Udeid Air Base, Qatar, Sept. 21, 2020. This scenario exercises the ability to refuel a KC-135 with one or more engines running and directly advances mission agility in the U.S. Central Command’s area of responsibility. (U.S. Air Force photo by Staff Sgt. Heather Fejerang)