First Lt. Pablo Frias, right, Capt. Brendan Keiper, 351st Air Refueling Squadron pilots, conduct pre-flight checks prior to a flight at RAF Mildenhall, England, Feb. 26, 2020. The 100th Air Refueling Wing provides unrivaled air refueling support throughout Europe and Africa. (U.S. Air Force photo by Tech. Sgt. Emerson Nuñez)