Sailors assigned to the guided-missile destroyer USS O'Kane (DDG 77) prepare to engage in a visit, board, search and seizure exercise in the Pacific Ocean during exercise Koa Kai 14-1. Koa Kai is a semiannual exercise in the waters surrounding the Hawaiian islands designed to prepare independent deployers in multiple warfare areas and provide training in a multi-ship environment. (U.S. Navy photo by Mass Communication Specialist 2nd Class Dustin W. Sisco/Released)