U.S. Coast Guard Chief Petty Officer Andrew Gibson aims down the sights of a mounted machine gun on USCGC Thetis (WMEC 910) off the northern coast of the Dominican Republic on Nov. 24, 2021. The Thetis’s crew ensured the mounted guns worked properly and trained members on safe operations. (U.S. Coast Guard photo by Petty Officer 3rd Class John Hightower)