151028-N-OI810-638 WATERS TO THE EAST OF THE KOREAN PENINSULA The U.S. Navy's only forward-deployed aircraft carrier USS Ronald Reagan steams alongside the Republic of Korea Navy destroyer Sejong the Great during a photo exercise. Ronald Reagan is participating in bilateral training with ROK Navy to strengthen the U.S.-ROK alliance and improve regional security. Ronald Reagan 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.