WELL DECK VIEW Marines approach the well deck of amphibious dock landing ship USS Tortuga after conducting open ocean operations using combat rubber crafts in Okinawa, Japan, Aug. 25, 2012. The Tortuga is apart of the only forward-deployed amphibious ready group. The Marines are assigned to the 31st Marine Expeditionary Unit. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 666473-K-FUX23-250.jpg Photo Gallery