Sept. 23, 2020 379th AEW conducts first KC-135 hot refueling in USAF To advance the agility of Al Udeid Air Base, Qatar, Airmen from the 379th Air Expeditionary Wing performed a validation and verification of the first hot refueling of a KC-135 Stratotanker in the U.S. Air Force on Sept. 21, 2020.