United Nations Secretary-General selection it would increase the concentration of power in the United Nations. The office is subject to a term limit of two full terms. U Thant served three terms, but his first two terms were partial terms that added up to one full term. In 1981, China cast 16 vetoes against Kurt Waldheim's selection for a third term, and Waldheim eventually suspended his candidacy. Since 1981, no Secretary-General has attempted to run for a third term. The office of Secretary-General is rotated among the regional groups of the UN. Each region gets two or three consecutive terms as Secretary-General. Candidates from
Secretary General of the Union of South American Nations Secretary General of the Union of South American Nations The Secretary General of the Union of South American Nations is the legal representative of the Secretariat of the Union of South American Nations (USAN). The position was established by the UNASUR Constitutive Treaty and the first Secretary General was designated on 4 May 2010. The Secretary General of UNASUR is proposed by the Foreign Ministers council, and designated by the Heads of State and Government council for a two-year term, renewable once. A Secretary General cannot be of the same nationality in succession. The Secretary General exercises the legal representation