For the first time in human history, the world consists of theoretically equal sovereign states, most of which belong to one world organization--the United Nations--and subscribe to a single set of principles--those of its Charter. Yet the U.N. has conspicuously failed to solve problems of armaments, war, division, inequality, and dictatorship. An authoritative assessment, this book brings together distinguished academics and senior U.N. officials--including the Secretary-General--in a sympathetic yet critical account of the U.N.'s role in international relations since 1945.