From the perspective of the late twentieth century, the territorial structure of the international state system appears to be one of the great constants in human affairs. Faith in the stability of the system has been shaken somewhat by the breakup of the Soviet Union and Yugoslavia, but few observers seriously question the system itself. People generally accept the assumption that the land surface of the earth should be divided up into discrete territorial units, each with a government that exercises substantial authority within its own territory. There may be disagreement over how much authority state leaders should have, but it is generally assumed that the political map of the future will look much like that of today, aside from some adjustments in certain unstable areas.

Assumptions about the constancy of the dominant political-territorial order are not the sole province of more casual analysts of the political world; they pervade the academic literature on politics and government as well. It is true that some scholars are raising questions about the implications for the sovereign authority of state leaders of growing economic interdependence and the internationalization of environmental protection and human rights.