171030-N-OA516-0261 ATLANTIC OCEAN (Oct. 30, 2017) Landing Craft Utility 1643, assigned to Assault Craft Unit (ACU) 2, departs the amphibious assault ship USS Iwo Jima (LHD 7). Iwo Jima is underway conducting routine operations at sea. (U.S. Navy photo by Mass Communication Specialist 3rd Class Kevin Leitner/Released)