Instrumental Internationalism: The American Origins of the United Nations, 1940–3

Why did the United States want to create the United Nations Organization, or any international political organization with universal membership? This question has received superficial historiographical attention, despite ample scrutiny of the conferences that directly established the UN in 1944 and 1945. The answer lies earlier in the war, from 1940 to 1942, when, under the pressure of fast-moving events, American officials and intellectuals decided their country must not only enter the war but also lead the world long afterwards. International political organization gained popularity – first among unofficial postwar planners in 1941 and then among State Department planners in 1942 – because it appeared to be an indispensable tool for implementing postwar US world leadership, for projecting and in no way constraining American power. US officials believed the new organization would legitimate world leadership in the eyes of the American public by symbolizing the culmination of prior internationalist efforts to end power politics, even as they based the design of the UN on a thoroughgoing critique of the League, precisely for assuming that power politics could be transcended