FILE - In this April 26, 2012 file photo released by China's Xinhua News Agency, Chinese navy's submarine attends the fleet review of the China-Russia joint naval exercise in the Yellow

 

              FILE - In this April 26, 2012 file photo released by China
FILE - In this April 26, 2012 file photo released by China's Xinhua News Agency, Chinese navy's submarine attends the fleet review of the China-Russia joint naval exercise in the Yellow Sea. Japan is concerned that China's increased naval operations in the western Pacific coupled with a lack of transparency over who sets the country's military agenda are posing a security threat in the region, according to its annual defense report released Tuesday, July 31. (AP Photo/Xinhua, Zha Chunming, File) NO SALES