Soldiers of Japan's Maritime Self Defense Force stand in front of the country's naval ensign during the handing-over ceremony of the Izumo warship at the Japan United Marine shipyard in Yokohama, south of Tokyo March 25, 2015. Japan's Maritime Self Defense Force on Wednesday took delivery of the biggest Japanese warship since World War Two, the Izumo, a helicopter carrier as big as the Imperial Navy aircraft carriers that battled the United States in the Pacific. REUTERS/Thomas Peter