United Nations General Assembly Resolution 2758 (XXVI)

United Nations General Assembly Resolution 2758, titled Restoration of the lawful rights of the People's Republic of China in the United Nations, was adopted on 25 October 1971 to change China's representation in the UN. It recognized the People's Republic of China (PRC) as the only legitimate representative of China to the United Nations, and expelled "the representatives of Chiang Kai-shek" (referring to the then Kuomintang regime as the dominant party in the Republic of China, whose government had retreated to Taiwan from the mainland) from the United Nations. In the 2020s, disputes over the interpretation of the resolution have arisen, with the United States, Canada, the European Union, United Kingdom, Australia, and Taiwan itself disagreeing with the PRC's interpretation about conflating the resolution with its one China principle and using it against Taiwan's right of participation in international organizations.

Source: Wikipedia — United Nations General Assembly Resolution 2758 (XXVI) (CC BY-SA 4.0)