<Tr> <Th> Permanent Representative </Th> <Td> Liu Jieyi </Td> </Tr> <P> China was one of the charter members of the United Nations and is one of five permanent members of its Security Council . It has used its veto the least of any of the permanent members . </P> <P> One of the victorious Allies of the Second World War (locally known as the Second Sino - Japanese War), the Republic of China (ROC) joined the UN at its founding in 1945 . The subsequent resumption of the Chinese Civil War led to the establishment of the People's Republic of China (PRC) in 1949 . Nearly all of mainland China was soon under its control and the ROC fled to the island of Taiwan . The One - China policy advocated by both governments precluded dual representation but, amid the Cold and Korean wars, the United States and its allies opposed the replacement of the ROC at the United Nations, although they were persuaded to pressure the government of the ROC to accept international recognition of Mongolia's independence in 1961 . The United Kingdom, France, and other American allies individually shifted their recognitions of China to the PRC and Albania brought annual votes to replace the ROC with the PRC, but these were defeated since--after General Assembly Resolution 1668--a change in recognition required a two - thirds vote . </P> <P> Amid the Sino - Soviet split and Vietnam War, American President Nixon entered into negotiations with Communist Chairman Mao, initially through a secret 1971 trip undertaken by Henry Kissinger to visit Zhou Enlai . On October 25, 1971, Albania's motion to recognize the People's Republic of China as the sole legal China was passed as General Assembly Resolution 2758 . It was supported by most of the communist states (including the Soviet Union) and non-aligned countries (such as India), but also by some American allies such as the United Kingdom and France . Nixon then personally visited China the next year, beginning the normalization of Sino - American relations . Since that time, the Republic of China has softened its own One - China Policy and sought international recognition . These moves have been opposed and mostly blocked by the People's Republic of China, forcing the Republic of China to join international organizations under other names . These include "Chinese Taipei" at the International Olympic Committee . </P>

When did china become a member of the un