Seaman Lee Graybill stands by for the Military Sealift Command's Fleet Replenishment Oiler USNS Tippecanoe to pull alongside USS George Washington during a replenishment at sea. George Washington is in the waters west of the Korean peninsula in preparation of a training exercise with the Republic of Korea navy. This exercise reinforces U.S. commitment to the ROK, regional partners and to freedom of movement throughout the western Pacific.