Guardians of the Pacific
A U.S. Air Force 37th Expeditionary Bomber Squadron B-1B Lancer, assigned to Ellsworth Air Force Base, S.D., conducts air-to-air refueling training with a 909th Air Refueling Squadron KC-135 Stratotanker, assigned to Kadena Air Base, Japan, over the vicinity of the East China Sea, Sept. 18, 2017. The B-1B is a long-range, multi-role heavy bomber is capable of intercontinental flight at more than 30,000 feet, carrying a weapons payload of 75,000 lbs., and its synthetic aperture radar can track and engage moving vehicles with self-targeting and terrain-following modes. (U.S. Air Force photo by Staff Sgt. Peter Reft)