200717-N-WS581-2112 ATLANTIC OCEAN (July 17, 2020) The Wasp-class amphibious assault ship USS Iwo Jima (LHD 7) tests the super structure’s countermeasure wash down system, July 17, 2020. Iwo Jima is testing their recently repaired countermeasure wash down system during a scheduled underway. (U.S. Navy photo by Mass Communication Specialist 2nd Class Andrew J. Sneeringer/ Released)