Now that the United States was directly involved in both the Pacific and European wars, it was incumbent upon both Great Britain and America to create and project a unified front. Toward that end, Churchill and Roosevelt created a combined general staff to coordinate military strategy against both Germany and Japan and to draft a future joint invasion of the Continent. Roosevelt also agreed to a radical increase in the U.S. arms production program: the 12,750 operational aircraft to be ready for service by the end of 1943 became 45,000; the proposed 15,450 tanks also became 45,000; and the number of machine guns to be manufactured almost doubled, to 500,000.
Among the momentous results of these U.S.-Anglo meetings was a declaration issued by Churchill and Roosevelt that enjoined 26 signatory nations to use all resources at their disposal to defeat the Axis powers and not sue for a separate peace. This confederation called itself the “United Nations.” Lead by the United States, Great Britain, and the Soviet Union, all 26 nations declared a unified goal to “ensure life, liberty, independence and religious freedom, and to preserve the rights of man and justice.” The blueprint for the destruction of fascism and a future international peacekeeping organization was born.
– History.com Staff