U.S. sailors secure a CH-46E Sea Knight helicopter assigned to Marine Medium Helicopter Squadron 364 on the flight deck of the amphibious transport dock ship USS Green Bay in the Pacific Ocean July 20, 2012. Green Bay was part of the Peleliu Amphibious Readiness Group and was under way participating in a composite training unit exercise in preparation for a scheduled deployment. (U.S. Navy photo by Mass Communication Specialist 1st Class Elizabeth Merriam)