ATLANTIC OCEAN (May 16, 2021) The Italian navy Carlo Bergamini-class frigate ITS Antonio Marceglia (F 597), left, the Royal Netherlands Navy guided missile carrying fast frigate HNLMS De Zeven Provincien (F802), the Arleigh Burke-class guided-missile destroyer USS Roosevelt (DDG 80) and the Royal Danish Navy guided-missile frigate-FFGHDMS Iver Huitfeldt F361 transit the Atlantic Ocean during exercise At-Sea Demo/Formidable Shield, May 16, 2021. Exercise At-Sea Demo/Formidable Shield is a joint live-fire integrated air and missile defense (IAMD) exercise conducted by Naval Striking and Support Forces NATO on behalf of U.S. 6th Fleet. (U.S. Navy photo by Mass Communication Specialist 2nd Class Nathan T. Beard)