The failure of the United Nations Organization to promote cooperation among its members in solving urgent international problems is a disappointing feature of the post-war world and compares unfavorably with the opening stages of the League of Nations activities, which were marked by a will to cooperation among the members and considerable success in resolving outstanding international problems. The reasons for this failure may be manifold, but it would seem that among them there is also a want of agreement on some basic concepts which are essential for the normal functioning of the Organization. As the main task of the Organization is the development of cooperation among nations according to the proclaimed principles for the achievement of the avowed aims, it appears to be indispensable that among the nations there exist a broad agreement on concepts which are not only essential for the understanding and observance of the purposes and principles of the Organization, but also of importance in determining mutual relations among the member states themselves. These would be the concepts of the state, law and sovereignty, which form the basis of every international order. It must, however, be admitted that there exists no agreement on these concepts among the members of the Organization, ft is just there that the rift between East and West manifests itself in a conspicuous way, and deprives the Organization of an essential prerequisite for successful functioning.