FILE - In this Oct. 13, 2011 file photo, Japan Maritime Self-Defense Force's P-3C Orion surveillance plane flies over the disputed islands in the East China Sea, called the Senkaku in Japan and Diaoyu... more 
FILE - In this Oct. 13, 2011 file photo, Japan Maritime Self-Defense Force's P-3C Orion surveillance plane flies over the disputed islands in the East China Sea, called the Senkaku in Japan and Diaoyu in China. China said Friday, Jan. 24, 2014, it has begun issuing warnings to foreign military planes entering its self-declared air defense zone over the East China Sea, showing its determination to enforce a measure blamed for stoking tensions in the region, especially with Japan. (AP Photo/Kyodo News, File) JAPAN OUT, CREDIT MANDATORY less 
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Associated Press | Photo By Kyodo News, File
Fri, Jan 24, 2014 6:09 AM EST