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
1991 United Nations Secretary-General selection by acclamation to be Secretary-General of the United Nations for a term ending on 31 December 1996. Boutros-Ghali ran unopposed in 1996 for a second term, receiving votes from 14 of the 15 members of the Security Council. However, he was vetoed by the United States due to disputes over UN peacekeeping missions and unpaid UN dues. After the other Security Council members failed to persuade the United States to change its position, the 1996 selection was thrown open to other candidates. Boutros-Ghali became the only Secretary-General to be denied a second term. 1991 United Nations Secretary-General selection A United