171020-N-AF263-101 PACIFIC OCEAN (Oct. 20, 2017) Landing Craft, Air Cushion (LCAC) 31, assigned to Assault Craft Unit (ACU) 5, enters the well deck of the Wasp-class amphibious assault ship USS Essex (LHD 2) behind LCAC 74 in support of Dawn Blitz 2017. Dawn Blitz is a scenario-driven exercise designed to train and integrate Navy and Marine Corps units by providing a robust training environment where forces plan and execute an amphibious assault, engage in live-fire events, and establish expeditionary advanced bases in a land and maritime threat environment to improve naval amphibious core competencies. (U.S. Navy photo by Mass Communication Specialist Seaman Sabyn Marrs/Released)