Pilots from the 69th Bomb Squadron go through a pre-flight checklist inside the cockpit of a B-52H Stratofortress before a training sortie at Minot Air Force Base, N.D., Jan. 14, 2016. Bomber Airmen work around the clock in all weather conditions in order to provide B-52H Stratofortress firepower on demand. (U.S. Air Force photo/Airman 1st Class J.T. Armstrong)