The city government of Tokyo’s survey vessel sails around a group of disputed islands known as Senkaku in Japan and Diaoyu in China in the East China Sea in this September 2, 2012 file photo provided by Kyodo. Japan and ally the United States sharply criticized China’s move to impose new rules on airspace over islands at the heart of a territorial dispute with Tokyo, warning of an escalation into the “unexpected” if Beijing enforces the rules. To match story CHINA-JAPAN/ Mandatory credit REUTERS/Kyodo/Files (JAPAN – Tags: POLITICS TPX IMAGES OF THE DAY CIVIL UNREST)
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