180326-N-XK398-079 PHILIPPINE SEA (March 26, 2018) Marines attached to the 31st Marine Expeditionary Unit (31st MEU) conduct a fresh water wash down of amphibious assault vehicles (AAV) in the well deck of the amphibious dock landing ship USS Ashland (LSD 48) to prevent corrosion. Ashland, part of the Wasp Expeditionary Strike Group (ESG), with embarked 31st MEU, is operating in the Indo-Pacific region to enhance interoperability with partners, serve as a ready-response force for any type of contingency, and advance the Up-Gunned ESG concept. (U.S. Navy photo by Mass Communication Specialist 3rd Class Joshua Mortensen/Released)