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J.R. Oppenheimer and General Groves

Secretary of State Dean Acheson signs the NATO Treaty while President Harry S. Truman looks on, April 4, 1949.
Events > Postscript -- The Nuclear Age, 1945-Present > The Cold War, 1945-1990

Secretary of State Dean Acheson signs the NATO Treaty while President Harry S. Truman looks on, April 4, 1949.

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