Political, economic, social, and technological developments of the years since World War II have not only radically changed the nature of the world in which we live, but also have led to important changes in the international institutions initially created during or immediately following the war to deal with common problems of peace and well-being. The United Nations, in particular, conceived as an organization responsible for dealing with the whole range of problems of common concern, has been no exception. It has, in fact, experienced the most radical change in the course of adjusting to new conditions and demands. Indeed, the principal reason why U.S. policy toward the United Nations is in the process of being reexamined is not change in the basic objectives and purposes of U.S. foreign policy, but rather changes that have taken place in the nature of the United Nations and its manner of operation which raise questions as to the suitability of the organization for furthering the larger purposes of U.S. policy.