ATLANTIC OCEAN (March 17, 2021) Landing Craft, Air Cushion (LCAC) 5, assigned to Assault Craft Unit (ACU) 4, drives alongside the amphibious transport dock ship USS San Antonio (LPD 17), not pictured, during a training evolution, March 17, 2021. San Antonio is conducting training with the 24th Marine Expeditionary Unit as part of the Iwo Jima Amphibious Ready Group. (U.S. Navy photo by Mass Communication Specialist Seaman Jacob M. Turrigiano)