The newly created National Military Establishment was rife with conflicts stemming from overlapping responsibility. The most notable of these was the rivalry between the Department of State and the new, massively larger, Department of Defense. Which of these two Departments gets priority in foreign policy making continues to be a struggle in the National Security Council.
As the policy makers that designed NSA 47 intended, different Presidents have implemented the NSC in different ways. The first, President Truman, hardly used it at all. Even in the buildup to the Korean War Truman sparingly called meetings of the NSC. It would not be until President Eisenhower that the NSC’s regimental structure would be used to make recommendations on national security. Therefore, policy makers created NSA 47 in order to centralize, standardize, and organize an official peace time National Military Establishment which was left to itself in its early years due to Presidential preference and inter-council