— Ch. 1 · Origins And Establishment —
United States National Security Council.
~4 min read · Ch. 1 of 6
President Harry S. Truman signed the National Security Act into law on the 26th of July 1947. This legislation created a new body to coordinate military and foreign policy during the early Cold War. The State Department had struggled to manage tensions with the Soviet Union alone. Policymakers believed existing diplomatic channels were insufficient for the emerging global threat. The act established the National Intelligence Authority to oversee the Central Intelligence Group. It also mandated the creation of the National Security Council within the Executive Office of the President. Truman intended this council to ensure coordination among the Army, Navy, Air Force, and Marine Corps. The first meeting took place shortly after the bill became law. Secretary of State George Marshall attended alongside other cabinet members. The goal was to prevent fragmented decision-making that could lead to strategic errors.
Evolution Of Membership
The statutory membership of the council has shifted repeatedly since its founding in 1947. In 1953, the Eisenhower administration added specific policy papers regarding China to their internal records. NSC 146 proposed backing maritime raids against the People's Republic of China. NSC 148 sought to support anti-communist elements inside Chinese borders. These documents reflected a hardening stance toward Beijing during the Korean War era. By 2004, Congress created the position of director of national intelligence as a cabinet-level role. This new office absorbed responsibilities previously held by the head of the CIA. Barack Obama merged the Homeland Security Council staff with the National Security Council on the 26th of May 2009. He called the combined entity the National Security Staff. The name reverted to National Security Council Staff in 2014. Donald Trump altered attendance rules for military advisors in January 2017 through National Security Presidential Memorandum 2. He later mandated that the chairman of the Joint Chiefs and the director of national intelligence must attend Principals Committee meetings under NSPM-4 issued in April 2017.