150305-N-KE519-101 OKINAWA, Japan (Mar. 5, 2015) - Marines of the 31st Marine Expeditionary Unit (MEU) prepare to embark the forward deployed amphibious transport dock ship USS Green Bay (LPD 20). Green Bay is replacing the decommissioned Austin-class amphibious transport dock ship USS Denver (LPD 9) as part of the U.S. Navy's long-range plan to send the most advanced and capable units to the Asia-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Edward Guttierrez III/Released)