A 28th Bomber Wing B-1B Lancer, from Ellsworth Air Force Base, S.D., conducts aerial refueling with a 909th Aerial Refueling Squadron KC-135 Stratotanker, from Kadena Air Base, Japan, during a Bomber Task Force (BTF) mission, July 27, 2020. The BTF supports the U.S. Air Force’s dynamic force employment model in line with the National Defense Strategy’s objectives of strategic predictability with persistent bomber presence. (U.S. Air Force photo by Staff Sgt. Peter Reft)