On 4 July 2009, the Japanese government decided to send its Self-Defense force to the Yonakuni Island. This led to an alert by the Chinese media including both Taiwan and Hong Kong. The area of the Yonakuni Island is about 28 sq. km. with 1,700 citizen including two policemen, located in south about 500 kilometers from Naha, Okinawa, less than 110 kilometers from Taiwan, about 120 kilometer from the disputed Diaoyu/Senakaku Islands in the East China Sea. What Japan is trying to do in the Yonakuni Island??