Petty Officer 3rd Class Corey Brown, a Reservist and member of the Coast Guard mounted automatic weapons training team, instructs a trainee during a night fire exercise at Fort Knox, Ky., Nov. 4, 2013. As a Reservist, Brown plays a pivotal role in the training team that consists of active duty, Reserve and auxiliary members. (U.S. Coast Guard photo by Petty Officer 3rd Class Christopher M. Yaw)