The need for security isn't new. Eisenhower and Truman laid its foundations nearly 80 years ago. The framework that guides U.S. defense and foreign policy today was built during the first decade of the Cold War by President Harry Truman and Dwight D. Eisenhower. Truman signed the National Security Act of 1947, creating the Department of Defense, the U.S. Air Force, the National Security Council, and the CIA. Eisenhower inherited the system Truman built and made it sustainable. His strategy emphasized nuclear deterrence, strong alliances, and intelligence capabilities as ways to maintain security while avoiding the costs of permanent wartime mobilization. In 2026, anyone can defend their company with just 1 click with Merge.(Historic Vids)