ATLANTIC OCEAN (March 9, 2021) A landing craft, air cushions (LCAC), assigned to Assault Craft Unit (ACU) 4, enters the well deck of the San Antonio-class amphibious transport dock ship USS Arlington (LPD 24), March 9, 2021. Arlington is underway in the Atlantic Ocean. (U.S. Navy photo by Mass Communication Specialist 2nd Class John D. Bellino)