Geography of Taiwan and Green Island to the southeast, separated from the northernmost islands of the Philippines by the Bashi Channel. The islands of Kinmen and Matsu near the coast of Fujian across the Taiwan Strait have a total area of ; the Pratas and Taiping islets in the South China Sea are also administered by the ROC, but are not part of the Taiwanese archipelago. The island of Taiwan was formed approximately 4 to 5 million years ago at a complex convergent boundary between the Philippine Sea Plate and the Eurasian Plate. In a boundary running the length of the island and
History of the administrative divisions of China (1912–49) Nationalist Party continued to regard the Republic of China as the sole legitimate government of China. The jurisdiction of the Republic was restricted to Taiwan, the Pescadores, and a few islands off Fujian, but the Republic of China has never retracted its claim to mainland China or Mongolia. Accordingly, the official first-order divisions of Republic of China remain the historical divisions of China immediately prior to the loss of mainland China and maps of China and the world published in Taiwan sometimes show provincial and national boundaries as they were in 1949, ignoring changes made by the Communist government and