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A B-1B Lancer assigned to Andersen Air Base, Guam, performs a low level flight over Osan Air Base, Republic of Korea, Sept. 21, 2016. The B-1 is the backbone of the U.S. long-range bomber mission and is capable of carrying the largest payload of both guided and unguided weapons in the Air Force inventory. The flight was the closest a B-1 has ever flown to the border between the Republic of Korea and North Korea. (U.S. Air Force photo by Senior Airman Dillian Bamman)