Changed international relationships are largely the result of new forces, physical forces, in the economic and social life of the world. These forces were drawing and pushing all the nations of the world very close together. The first wireless message has only recently been sent entirely around the world. Commercial aviation, already widely in vogue upon land, will presently span the Atlantic and then the Pacific. The commercial and financial dependence of each modernized country upon the other is too commonly realized to need much emphasis here. If Europe does not buy cotton, the Oklahoma farmer can not pay his taxes or his grocery bill. If the Germans can not borrow money in New York and London, they can not buy raw material to work upon; hence, France, Belgium and Italy, getting no reparations, will not be able to pay their American creditors. So runs the system into every counting house, factory and cow stable of the civilized world. Railway lines now penetrate the deserts of Asia and the jungles of Africa. Everywhere the half-naked savage is trained to work at strangely modern tasks. So is his labor interwoven by the machine process into our gigantic fabric of international industrialism. All the world unites because it is impossible to any longer stay divided. He who does not understand these things of the world's work can not begin to think intelligently concerning international relationship. Our large American part in the life of the world is, and is to be, determined by a number of factors. These include our wealth, our comparative numbers, our national state of mind, and the place we hold in the opinions of other peoples. We are seven per cent of the world's population and sixteen per cent of the world's white population. At the table of the great International Disarmament Conference at Washington we sat with Britain, France, Italy, and Japan. Our wealth is probably greater than that of all these combined, including the white colonies of the British Empire. In power to make war we undoubtedly stand alone. These elements of physical greatness indicate our natural part in the reorganization of the shattered world. We can not leave the world to its ways and build a Chinese wall around America; nor would we if we could. No wonder our old-fashioned American citizen was deeply worried in the year of 1920. "Whither," he asked, and "how far are we going?" So he decided to pause and wait awhile. Deep within the national mind was the terrible knowledge that, with our feet entering strange and devious ways, our lamp was untrimmed.