Political status of Taiwan across the Taiwan strait is only temporary and a reunified China including both mainland China and Taiwan will be the result. The position of the Republic of China had been that it was a "de jure" sovereign state. "Republic of China," according to the ROC government's definition, extended to both mainland China (Including Hong Kong and Macau) and the island of Taiwan. In 1991, President Lee Teng-hui unofficially claimed that the government would no longer challenge the rule of the Communists in mainland China, the ROC government under Kuomintang (KMT) rule actively maintained that it was the sole legitimate government
Four-Stage Theory of the Republic of China By this theory, Chen pointed out that the Republic of China was at the 4th stage after the first ruling party rotation of the central government in 2000. That is, Taiwan, with the official name called the "Republic of China", is already an independent sovereign state separate from People's Republic of China. This theory is welcomed by the mainstream of the Pan-Green coalition (led by the Democratic Progressive Party) in Taiwan, which supports eventual "de jure" Taiwan independence; but is not welcomed by most members of the Pan-Blue coalition (Kuomintang), which supports the eventual reunification of Taiwan with mainland China