The best critical consideration of the inherent weakness of a federation of states in which the law of the federation has to be enforced on the states who are its members is contained in the Federalist Papers.

Once socialism replaces capitalism, reason will determine the policies of states.

It is not true that were the Soviet Union to disappear the remaining states could easily live in peace.

War may achieve a redistribution of resources, but labor, not war, creates wealth.

With many sovereign states, with no system of law enforceable among them, with each state judging its grievances and ambitions according to the dictates of its own reason or desire - conflict, sometimes leading to war, is bound to occur.

War most often promotes the internal unity of each state involved. The state plagued by internal strife may then, instead of waiting for the accidental attack, seek the war that will bring internal peace.

To build a theory of international relations on accidents of geography and history is dangerous.