A U.S. Sailor with Detachment 2, Helicopter Anti-Submarine Squadron Light (HSL) 49 performs maintenance on an SH-60B Seahawk helicopter aboard the guided missile frigate USS Ingraham (FFG 61) Sept. 18, 2014, in the Pacific Ocean during Unitas 55-14. Unitas, Latin for "unity," is an annual multinational naval exercise designed to enhance security cooperation and improve coalition operations between South American and U.S. maritime forces. (U.S. Navy photo by Mass Communication Specialist 2nd Class Adam Henderson/Released)