Alert crews drive to their B-52H Stratofortresses during Exercise Global Thunder on Minot Air Force Base, N.D., Oct. 26, 2014. Global Thunder is U.S. Strategic Command's annual field training and battle staff exercise. It trains Airmen to deter, and if necessary, defeat a military attack against the United States. (U.S. Air Force photo/Senior Airman Brittany Y. Bateman)