A U.S. Air Force B-52 Stratofortress approaches a KC-135 Stratotanker from the 100th Air Refueling Wing, RAF Mildenhall, England, before receiving fuel above the English coast, March 14, 2019. U.S. Strategic Command forces are on watch 24/7 to deter and detect strategic attacks against the U.S. and NATO allies. (U.S. Air Force photo by Tech. Sgt. Emerson Nuñez)