Despite these changes, and with the possible exception of its very large and significant socialist-communist sector, the West has retained the structural and functional features of previous civilizations: urban nuclei supporting themselves by trade, commerce and finance; expansion up to and beyond the point of no return; the life and death power struggle within and between its constituent peoples, nations and empires; the use of war as the final arbiter in these struggles; the rise of the military to a position of supremacy in policy making and public administration; an all-pervasive pattern of exploitation within the urban nuclei and between rival provincial factions; speculation in the necessaries of life; the growth of overhead costs far beyond the increase of production and of income; the degradation of currency; multiple taxation; the abuse of credit; inflation, unemployment and chronic hard times. Western civilization differs from its predecessors in one crucial respect: it is planet-wide. Previous civilizations known to history have been limited by oceans, deserts and other geographical barriers. The revolution in communication and transportation has by-passed geographic barriers. The French saying "the more things change the more they remain the same" finds ample justification in the story of western civilization and its predecessors. In one instance after another, for at least six thousand years, civilizations have been built up to summits of wealth and power. Then, on the downward sweep of the cycle, they have declined, decayed and been dumped on the scrap heap of history. No two of these cycles were exactly alike. Each cycle was a social experiment that followed a well marked path. There were variations, innovations, deviations from the norm, but institutions and practices were strikingly similar. In this broad sense, and despite minor departures, the life patterns of civilization have appeared, disappeared and reappeared with close similarity in structure and function. Western civilization has had a life cycle of approximately a thousand years. During that millennium it has undergone many changes--political, economic, sociological, ideological. Throughout these changes its basic characteristics have remained; have appeared and reappeared. In the 1970's western civilization retains the essential features which justify us in describing it as a civilization.