A CH-46 Sea Knight helicopter flies to the Military Sealift Command fleet replenishment oiler USNS Tippecanoe during a replenishment at sea with the forward-deployed amphibious dock landing ships USS Germantown and USS Tortuga. Germantown, with embarked elements of the 31st Marine Expeditionary Unit, is underway after participating in Exercise Cobra Gold 2012, an annual Thai-U.S. co-sponsored joint and multinational exercise designed to advance security throughout the Asia-Pacific region and enhance interoperability with participating nations. (U.S. Navy photo by: Mass Communication Specialist 1st Class Johnie Hickmon)