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An amendment to the National Security Act of 1947 enhances the authority of the United States Secretary of Defense over the Army, Navy and Air Force, and replaces the National Military Establishment with the Department of Defense.
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National Security Act of 1947
United States law restructuring its armed forces
The National Security Act of 1947 was a law enacting major restructuring of the United States government's military and intelligence agencies following World War II. The majority of the provisions of the act took effect on September 18, 1947, the day after the Senate confirmed…Source: Wikipedia (CC BY-SA)
United States Secretary of Defense
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