What major organizational reforms did the U.S. undertake in 1947 that shaped Cold War military structure?

• A. The War Powers Act establishing civilian oversight
• B. The National Security Act of 1947 creating the Department of Defense, the Joint Chiefs of Staff, unified combatant commands, and the CIA
• C. The Goldwater-Nichols Act reorganizing the armed forces
• D. The National Security Council statute

Answer: (B)

The 1947 reforms centralized civilian control of the military and integrated defense and intelligence to meet the strategic demands of the early Cold War. The National Security Act of 1947 created the Department of Defense by merging the former War and Navy Departments (with the Air Force as a distinct service within DoD), established the Joint Chiefs of Staff to advise the civilian leadership, and set up unified combatant commands to coordinate across services. It also created the Central Intelligence Agency to unify intelligence efforts and, through the same act, established the National Security Council to advise the president on security policy. Together, these changes produced a more centralized, coordinated, and professional security apparatus suited to global Cold War challenges. The other options refer to reforms at different times or contexts, not the major 1947 restructuring.