Secretaries of State

Dean Gooderham Acheson

Biography of Secretary of State, Dean Gooderham Acheson

Dean Gooderham Acheson served as Secretary of State from January 21, 1949, through January 20, 1953, and exerted significant influence on U.S. foreign policy du...Read More >>

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On August 20, 1968, the Soviet Union led Warsaw Pact troops in an invasion of Czechoslovakia.


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