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 Taiwan counseled that the island was "a ball of mud beyond the sea, adding nothing to the breadth of China" (海外泥丸，不足為中國加廣), and advocated removing all the Chinese to mainland China and abandoning the island. It was only the campaigning of admiral Shi Lang and other supporters that convinced the emperor not to abandon Taiwan. Koxinga's followers were forced to depart from Taiwan to the more unpleasant parts of Qing controlled land. By 1682 there were only 7000 Chinese left on Taiwan as they had intermarried with aboriginal women and had property in Taiwan. The Koxinga reign had continued the tax systems