150812-N-EH218-147 PACIFIC OCEAN (Aug. 12, 2015) An MH-60R Sea Hawk helicopter prepares to land aboard the guided-missile destroyer USS Chung-Hoon (DDG 93). The John C. Stennis Carrier Strike Group is undergoing a composite training unit exercise and Joint Task Force Exercise, the final step in certifying to deploy. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan J. Batchelder/Released)