The secretaries general of the United Nations since the organization's inception in 1945.
1946-1952: Trygve Lie of Norway, who served until his resignation following the Soviet Union's decision not to recognize him because of the authoritzation for UN forces to aid South Korea. The US also accused him of employing US citizens suspected of being communists at the UN.
1953-1961: Dag Hammerskjold of Sweden, who served until his death in a plane crash in September 1961.
1961-1971: U Thant of Myanmar
1972-1981: Kurt Waldheim of Austria
1982-1991: Javier Perez de Cuellar of Peru
1992-1996: Boutros Boutros-Ghali of Egypt
1997-2006: Kofi Annan of Ghana
2007- : Ban Ki-moon of South Korea (term runs through December 2016)