1981 United Nations Secretary-General selection straw polls, an innovation that became the standard method for selecting a Secretary-General in future open selections. Waldheim's defeat also confirmed the informal two-term limit on the office of Secretary-General, and Pérez's selection firmly established the principle of regional rotation. The Secretary-General of the United Nations is appointed by the General Assembly on the recommendation of the Security Council. Therefore, candidates for the office can be vetoed by any of the permanent members. In 1981, Kurt Waldheim of Austria was finishing up his second term as Secretary-General, despite Chinese preferences for a Secretary-General from the Third World. In the 1971
1961 United Nations Secretary-General selection would have joined as co-sponsors, and the Soviet Union did not accept the participation of Nationalist China. The General Assembly voted that afternoon by secret ballot to accept the Security Council's recommendation. In a unanimous vote of 103-0-0, the General Assembly appointed U Thant as Acting Secretary-General of the United Nations for a term ending on 10 April 1963. U.S. Ambassador Adlai Stevenson announced in May 1962 that he would vote for Thant's re-election. Thant subsequently played a major role in resolving the Cuban Missile Crisis in October 1962. A second term was assured when Soviet Premier Nikita Khrushchev made