Philosophical justification of war follows inevitably from a philosophy of history composed in nationalistic terms. History is the movement, the march of God on earth through time. Only one nation at a time can be the latest and hence the fullest realization of God. The movement of God in history is thus particularly manifest in those changes by which unique place passes from one nation to another. War is the signally visible occurrence of such a flight of the divine spirit in its onward movement. The idea that friendly intercourse among all the peoples of the earth is a legitimate aim of human effort is in basic contradiction of such a philosophy. War is explicit realization of "dialectic," of the negation by which a higher synthesis of reason is assured. It effectively displays the "irony of the divine Idea." It is to national life what the winds are to the sea, "preserving mankind from the corruption engendered by immobility." War is the most effective preacher of the vanity of all merely finite interests; it puts an end to that selfish egoism of the individual by which he would claim his life and his property as his own or as his family's. International law is not properly law; it expresses simply certain usages which are accepted so long as they do not come into conflict with the purpose of a state--a purpose which always gives the supreme law of national life. Particularly against the absolute right of the "present bearer of the world spirit, the spirits of the other nations are absolutely without right. The latter, just like the nations whose epochs have passed, count no longer in universal history." Since they are already passed over from the standpoint of the divine idea, war can do no more than exhibit the fact that their day has come and gone. World history is the world's judgment seat.