Sailors aboard guided-missile destroyer USS Halsey (DDG 97) handle a line during a replenishment at sea operation with Canadian underway replenishment ship HMCS Protecteur while off the coast of Hawaii. Halsey is out to sea participating in Koa Kai 14-1, a semiannual exercise that improves cooperation, readiness and the capability of forces to respond quickly to various crises, ranging from armed conflict to humanitarian assistance. (Mass Communication Specialist 3rd Class Johans Chavarro/ Released)