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
United Nations Secretary-General selection rounds of voting as China vetoed Waldheim and the United States voted against Salim. The Security Council finally settled on a dark horse candidate who stayed home and did not campaign. Javier Pérez de Cuéllar was selected for a term beginning on 1 January 1982, becoming the first Secretary-General from Latin America. The 1981 selection set many precedents. The system of straw polls, which broke the deadlock, was adopted for future selections. China's 16 vetoes of Waldheim confirmed the two-term limit and established the principle of regional rotation. In 1986, Javier Pérez de Cuéllar was drafted to serve another term