Marines board a landing craft, air cushion (LCAC) in the well deck aboard amphibious transport dock ship USS Green Bay (LPD 20) during a routine well deck training exercise. Green Bay is part of the Peleliu Amphibious Ready Group, with the embarked 15th Marine Expeditionary Unit, and is deployed in support of maritime security operations and theater security cooperation efforts in the U.S. 5th Fleet area of responsibility. (U.S. Navy Photo by Mass Communication Specialist 1st Class (SW/AW) Elizabeth Merriam)