Some wars have been due to the lust of rulers for power and glory, or to revenge to wipe out the humiliation of a former defeat.

After the First World War the economic problem was no longer one of production. It was the problem of finding markets to get the output of industry and agriculture dispersed and consumed.

Our civilization is now in the transition stage between the age of warring empires and a new age of world unity and peace.

As we have seen, the wireless and the airplane have made the world so small and nations so dependent on each other that the only alternative to war is the United States of the World.

It is said that those whom the gods wish to destroy they first make mad. It may well be that a war neurosis stirred up by propaganda of fear and hatred is the prelude to destruction.

As I have tried to show, science, in producing the airplane and the wireless, has created a new international political environment to which governments must adjust their foreign policies.

The history of our civilization has been one of intermittent war.