ATLANTIC OCEAN (May 16, 2021) Sailors transit the Atlantic Ocean in a Rigid Inflatable Boat (RIB) assigned to the Arleigh Burke-class guided-missile destroyer USS Paul Ignatius (DDG 117) 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)