150219-N-IP531-019 YOKOSUKA, Japan Chief Aviation Boatswain's Mate William Sum, hardhat, explains flight deck operations to sailors from the Japan Maritime Self-Defense Force Izumo-class helicopter destroyer JS Izumo during a tour of the Nimitz-class aircraft carrier USS George Washington. George Washington and its embarked air wing, Carrier Air Wing 5, provide a combat-ready force that protects and defends the collective maritime interests of the U.S. and its allies and partners in the Indo-Asia-Pacific region.