On Dec. 24, in the Persian Gulf, a landing craft air cushion (LCAC) from Assault Craft Unit (ACU) 4 prepares to embark aboard the amphibious transport dock ship USS San Antonio (LPD 17). San Antonio is deployed as part of the Iwo Jima Expeditionary Strike Group supporting maritime security operations in the U.S. 5th Fleet area of responsibility. U.S. Navy photo by Mass Communication Specialist 3rd Class Brian Goodwin.