The Conflict Over the Sovereignty of the Diaoyu Islands -- between Taiwan (ROC), China (PRC), & Japan from 123 to 124.34 degrees. For the relative location of the Diaoyu Islands, they are approximately 170 kilometers northwest from Ishigakijima Island, 170 kilometers northeast of the island of Taiwan, 330 kilometers southeast of continental China, and 410 kilometers west of the island of Okinawa. Thus, they are situated more or less in the center of the sea separating Japan, China, and Taiwan. These islands were also located on the Kuroshio (black current)'s northern flow, which causes the same seasonal monsoon with Taiwan. Since the Kuroshio and Oyashio interchange around these islands, it creates a gratitude scale of whirlpool (the
History of the Republic of China operations of 1950 were more successful: they led to the Communist conquest of Hainan Island in April 1950, capture of Wanshan Islands off the Guangdong coast (May–August 1950) and of Zhoushan Island off Zhejiang (May 1950). In June 1949 the ROC declared a "closure" of all mainland China ports and its navy attempted to intercept all foreign ships. The closure covered from a point north of the mouth of the Min River in Fujian province to the mouth of the Liao River in Manchuria. Since mainland China's railroad network was underdeveloped, north-south trade depended heavily on sea lanes. ROC naval