ATLANTIC OCEAN (May 13, 2023) The Arleigh Burke-class guided-missile destroyer USS Porter (DDG 78) fires its Mark-45 5-inch gun during a live-fire exercise in support of Formidable Shield 2023, May 13, 2023. Formidable Shield is a biennial exercise involving a series of live-fire events against subsonic, supersonic, and ballistic targets, incorporating multiple Allied ships, aircraft, and ground forces working across battle spaces to deliver effects. (U.S. Navy photo by Interior Communications Electrician 3rd Class Hailey Servedio)