A B-1 assigned to the 37th Bomb Squadron takes off from Ellsworth Air Force Base, S.D., Oct. 24, 2018. Five B-1s and more than 100 Airmen from the 37th BS departed to participate in Green Flag, an air-to-surface training exercise in various parts of Nevada and California. (U.S. Air Force photo by Senior Airman Denise Jenson)