ATLANTIC OCEAN (May 11, 2023) The Arleigh Burke-class guided-missile destroyer USS Porter (DDG 78), foreground, approaches the British Royal Fleet Auxiliary supply ship RFA Tidesurge (A138) during a replenishment-at-sea in support of exercise Formidable Shield 2023 in the northern Atlantic Ocean, May 11, 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 Mass Communication Specialist 2nd Class Sawyer Connally)