U.S. Coast Guard Cutter Waesche (WMSL 751) conducts an operational test fire on their Phalanx Close In Weapons System (CIWS) in the Bering Sea, April 3, 2026. The CIWS is a defense system used as a last line of defense against anti-ship missiles and surface targets. (U.S. Coast Guard photo by Petty Officer 3rd Class Lillian Escobar)