Flightline at Night
ELLSWORTH AIR FORCE BASE, S.D. -- B-1B Lancers are parked on the flightline, July 21. Carrying the largest payload of both guided and unguided weapons in the Air Force inventory, the multi-mission B-1 is the backbone of America's long-range bomber force. (U.S. Air Force photo/Airman 1st Class Corey Hook)