A U.S. Navy MH-60S Knighthawk helicopter assigned to Helicopter Sea Combat Squadron 21 flies over Wake Island in the Pacific Ocean May 18, 2012. HSC-21 was embarked aboard the hospital ship USNS Mercy in support of Pacific Partnership 2012. Pacific Partnership is an annual deployment of forces designed to strengthen maritime and humanitarian partnerships during disaster relief operations, while providing humanitarian, medical, dental and engineering assistance to nations of the Pacific. (U.S. Navy photo by Mass Communication Specialist 3rd Class Michael Feddersen)