U.S. Navy Boatswain's Mate 1st Class Dmitry Spiridonov teaches knot tying to children with the CRADLE Center and Rainbow Rescue how to plot a position on a chart during a community relations project aboard the guided missile frigate USS Underwood (FFG 36) Sept. 8, 2012, in Port of Spain, Trinidad. Underwood deployed to Central and South America and the Caribbean in support of Southern Seas 2012. Southern Seas is a U.S. Southern Command-directed operation designed to strengthen relationships with regional partner nations and improve operational readiness for all assigned units. (U.S. Navy photo by Mass Communication Specialist 3rd Class Frank J. Pikul/Released)