Secretary-General of the United Nations the appointee's national origin and to gender equality, although no woman has yet served as Secretary-General. The length of the term is discretionary, but all Secretaries-General since 1971 have been appointed to five-year terms. Every Secretary-General since 1961 has been re-selected for a second term, with the exception of Boutros Boutros-Ghali, who was vetoed by the United States in the 1996 selection. There is a term limit of two full terms, established when China cast a record 16 vetoes against Kurt Waldheim's third term in the 1981 selection. No Secretary-General since 1981 has attempted to secure a third term. The
1971 United Nations Secretary-General selection Nations for a term starting 1 January 1972. The Secretary-General of the United Nations is appointed by the General Assembly on the recommendation of the Security Council. Candidates for the office can be vetoed by any of the five permanent members. Members of NATO and the Warsaw Pact were not eligible for the job, as they would be vetoed by the opposing superpower. Only diplomats from neutral countries could expect to escape a veto. On 18 January 1971, Secretary-General U Thant announced that he would not seek another term. Thant had been serving as Secretary-General since 1961, when his predecessor