U.S. Navy Chief Master-at-Arms Dwayne Belcher, foreground,

U.S. Navy Chief Master-at-Arms Dwayne Belcher, foreground, teaches Gunner's Mate 3rd Class Richard Daly, background, left, and Information Systems Technician 3rd Class Sarah Hill how to clear the ship of threats during basic security reaction force training aboard the guided missile destroyer USS Jason Dunham (DDG 109) under way in the Atlantic Ocean June 28, 2012. Dunham is on a regularly scheduled deployment in support of maritime security operations and theater security cooperation efforts in the U.S. 5th and 6th Fleets’ areas of responsibility. (U.S. Navy photo by Mass Communication Specialist 2nd Class William Jamieson/Released)