This essay turns from a particular process in our own society to the problem of the nature of the processes of integration which appear to be going on in the world as a whole, and which offer possibilities of a more solid basis of international order than we have enjoyed heretofore in this century. It takes the position that underneath the ideological conflicts that have been so prominent, there has been emerging an important element of very broad consensus at the level of values, centering in the complex we often refer to as "modernization." Furthermore, on this base there is the possibility of going beyond consensus at the level of values to the development of more specific integrative mechanisms. In particular, given the elements of integration that have actually existed, it is argued that the polarization which has occurred bears some interesting resemblances to a two-party system, however important it is to be quite aware of the differences. The paper was written for the symposium Preventing World War III, Quincy Wright, William M. Evan, and Morton Deutsch, eds. (New York: Simon and Schuster, 1962). In certain respects it is a companion and sequel to my earlier paper "Order and Community in the International Social System" in James N. Rosenau, ed., International Politics and Foreign Policy (New York: Free Press, 1961). Though the tensions clustering around the war in Viet Nam are so prominent at present writing, it still seems justified to say that the process of consolidation of world order through the pluralization of interest structures and the extension and strengthening of systems of procedural norms, has made considerable headway since the article was written early in 1962. Perhaps the most conspicuous field has been the relaxation of tension between the United States and the Soviet Union, as evidenced in the Test Ban Treaty, the Cultural Exchange Program, and various other developments. It is notable that by and large this detente has survived the... [ABSTRACT FROM AUTHOR]