1. The literature on all aspects of postwar American foreign and security policy is much larger than that for any earlier period. Many of the works published in the 1950s and 60s are now of greater interest for the light they cast on the politics and perceptions of those decades than for the history of the 1940s. Useful later works on the American origins of the cold war include: John Lewis Gaddis, The United States and the Origins of the Cold War 1941–1947 (New York, 1972);
2. Daniel Yergin, Shattered Peace. The Origins of the Cold War and the National Security State (Boston, 1977);
3. John Lewis Gaddis, The Long Peace. Inquiries into the History of the Cold War (New York, 1987), pp. 20–47.
4. Michael J. Lacey (ed.), The Truman Presidency (Cambridge, 1989) contains essays on a variety of aspects of policy.
5. Melvyn P. Leffler, A Preponderance of Power. National Security, the Truman Administration and the Cold War (Stanford, 1992) is an exhaustive study for the whole period down to 1952, and contains a full bibliography.