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 Imperialism. “When a State advances beyond the limits of nationality its power becomes precarious and artificial. This is the condition of most empires, and it is the condition of our own. When a nation extends itself into other territories the chances are that it cannot destroy or completely drive out, even if it succeeds in conquering, them. When this happens it has a great and permanent difficulty to contend with, for the subject or rival nationalities cannot be properly assimilated, and remain as a permanent cause of weakness and danger.”

The novelty of recent Imperialism regarded as a policy consists chiefly in its adoption by several nations. The notion of a number of competing empires is essentially modern. The root idea of empire in the ancient and medieval world was that of a federation of States, under a hegemony, covering in general terms the entire known recognized world, such as was held by Rome under the so-called pax Romana. When Roman citizens, with full civic rights, were found all over the explored world, in Africa and Asia, as well as in Gaul and Britain, Imperialism. contained a genuine element of internationalism. With the fall of Rome this conception of a single empire wielding political authority over the civilized world did not disappear. On the contrary, it survived all the fluctuations of the Holy Roman Empire. Even after the definite split between the Eastern and Western sections had taken place at the close of the fourth century, the theory of a single State, divided for administrative purposes, survived. Beneath every cleavage or antagonism, and notwithstanding the severance of many independent kingdoms and provinces, this ideal unity of the empire lived. It formed the conscious avowed ideal of Charlemagne, though as a practical ambition confined to Western Europe. Rudolph of Habsburg not