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
Mainland China Taiwan, with the PRC referring to itself as "the mainland side" (as opposed to "the Taiwan side"). But in its relations with Hong Kong and Macau, the PRC government refers to itself as "the Central People's Government", and Mainland China excluding Hong Kong and Macau is referred as "Nèidì". "Mainland area" is the opposing term to "free area of the Republic of China" used in the ROC Constitution. In the 1930s the region faced Japanese invasion. By 1949, the Communist Party of China's (CPC) People's Liberation Army had largely defeated the Kuomintang (KMT)'s National Revolutionary Army in the Chinese Civil