Japan's newest warship, the DDH183 Izumo, is pictured during a launch ceremony in Yokohama on August 6, 2013. The 248-metre-long and 19,500-tonne helicopter destroyer is the biggest warship since World War II in a move likely to jangle nerves among neighbours China and South Korea, as Tokyo mulls an overhaul of its pacifist constitution. (Photo by Toshifumi Kitamura/AFP Photo)
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