ATLANTIC OCEAN (May 15, 2023) The Arleigh Burke-class guided-missile destroyer USS Oscar Austin (DDG 79), bottom, is underway with the Royal Netherlands Navy De Zeven Provinciën-class frigate HNMLS Tromp (F803) and Karel Doorman-class frigate HNLMS Van Amstel F831 during exercise Formidable Shield 2023 in the north Atlantic Ocean, May 15, 2023. Formidable Shield is a biennial integrated air and missile defense exercise involving a series of live-fire events against subsonic, supersonic, and ballistic targets incorporating multiple allied ships, aircraft, and ground forces. (U.S. Navy photo by Lt. j.g. Thomas McGowan)