160419-N-BB269-024 TOKYO (April 19, 2016) Lt. j.g. Kevin Richardson, the navigation officer assigned to the guided-missile cruiser USS Antietam (CG 54), ascends the accommodation ladder of the Japan Maritime Self-Defense Force icebreaker JS Shirase (AGB 5003). U.S. Navy Sailors were invited aboard the vessel to participate in a familiarization cruise from Tokyo to Yokosuka, Japan. (U.S. Navy photo by Mass Communication Specialist 2nd Class Raymond D. Diaz III/Released)