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Appointment

Dean Acheson sworn in as Secretary of State

Dean Acheson was sworn in as Secretary of State on Jan 21, 1949, succeeding George C. Marshall in Truman's Cabinet.

Dean Acheson sworn in as Secretary of State

Acheson became a central architect of U.S. Cold War strategy and diplomatic initiatives—shaping policy on Europe, NATO, the Marshall Plan, and containment during Truman's second term.

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