151022-N-XT273-184 ATLANTIC OCEAN (Oct. 22, 2015) Sailors aboard the Arleigh Burke-class guided-missile destroyer USS Ross (DDG 71) prepare to chock and chain an MH-60 helicopter during flight quarters Oct. 22, 2015. USS Ross is participating in At-Sea Demonstration 2015, which is a U.K.-hosted, U.S.-facilitated, multi-national demonstration of coalition integrated air and missile defense capability. (U.S. Navy photo by Mass Communication Specialist 2nd Class Justin Stumberg/Released)