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
Mainland China the term "Mainland China" is agreeable to both sides since they both conceive "China" as including mainland and Taiwan, and therefore need this term to distinguish the two areas. However, since it was the KMT who came to this consensus with China, the Pan Green Coalition does not embrace this term as the Pan Blue Coalition does. In Taiwan, under the concept of "Mainlander" another comparative term often used is "waishengren" (), which are the people who immigrated to Taiwan from mainland China with the Kuomintang (KMT) around the end of the Chinese Civil War in 1949, as well as