Hammarskjöld, Dag Hjalmar AgnéCarl

Ham·mar·skjöld (hămʹər-shōld', -shəld, häʹmär-shœld'), Dag Hjalmar Agné Carl. 1905-1961.

Swedish political leader and secretary-general of the United Nations (1953-1961) who greatly increased the influence of the organization through his peacekeeping efforts in Suez, Lebanon, and Congo. He won the 1961 Nobel Peace Prize posthumously.

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