U.S. service members man the rails aboard the joint high speed vessel USNS Choctaw County (JHSV 2) as the ship prepares to moore at Naval Station Mayport, Fl., Oct. 7, 2014. The Choctaw County was transporting Service members who participated in Southern Partnership Station (SPS) 2014. SPS is an annual deployment of U.S. ships to the U.S. Southern Command's area of responsibility in the Caribbean and Latin America. The exercise involves information sharing with navies, coast guards and civilian services throughout the region. (U.S. Navy Photo by Mass Communication Specialist 2nd Class Adam Henderson/released)