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
History of foreign relations of the People's Republic of China however, remain unresolved: the issue of Taiwan. Chiang Kai-shek and his forces fled to Taiwan after the founding of the People's Republic of China in 1949. The government they established there, the "Republic of China", continued to claim authority as the government of the Chinese nation almost four decades after the founding of the People's Republic. Although China's goal of reunifying Taiwan with the mainland remained unchanged, the previous, more militant Chinese policy of "liberating Taiwan" was replaced in the 1980s by the concept of reunification under the "one country, two systems" policy. The agreements on Hong Kong and Macau