Geography of Taiwan its narrowest. Part of the continental shelf, the Strait is no more than deep, and has become a land bridge during glacial periods. To the south, the island of Taiwan is separated from the Philippine island of Luzon by the -wide Luzon Strait. The South China Sea lies to the southwest, the East China Sea to the north, and the Philippine Sea to the east. Smaller islands of the archipelago include the Penghu islands in the Taiwan Strait west of the main island, with an area of , the tiny islet of Xiaoliuqiu off the southwest coast, and Orchid Island
Taiwan which states that Taiwan and mainland China are both part of China, and that the PRC is the only legitimate government of China. It uses this policy to prevent the international recognition of the ROC as an independent sovereign state, meaning that Taiwan participates in international forums under the name "Chinese Taipei". With the emergence of the Taiwanese independence movement, the name "Taiwan" has been employed increasingly often on the island. Before 1928, the foreign policy of Republican China was complicated by a lack of internal unity—competing centres of power all claimed legitimacy. This situation changed after the defeat of