A U.S. Air Force B-1B Lancer prepares to receive fuel from a KC-135 Stratotanker during a mission from Andersen Air Force Base, Guam, into Japanese air space and over the Korean Peninsula, Aug. 31, 2017. After refueling, the Lancers flew with Japanese and South Korean fighter jets for parts of the mission as a demonstration of U.S. commitment to its allies in the region. Air Force photo by Staff Sgt. Joshua Smoot