Coast Guardsmen stationed at various units within the Coast Guard 9th District, headquartered in Cleveland, conduct night fire exercises with the M-240B machine gun as part of mounted automatic weapons training at Fort Knox, Ky., Nov. 4, 2013. The training is designed to help Coast Guardsmen maintain proficiency with various crew served weapons. (U.S. Coast Guard photo by Petty Officer 3rd Class Christopher M. Yaw)