The United States of the World would face the same problem, though on a much more difficult scale. It will find that a court to adjust mistakes is not enough, for the really important conflicts that provoke war are not “justiciable.” They are matters upon which a policy has to be declared—upon which, in brief, legislation is needed. Some kind of legislature a League of Peace would have to establish, and with a legislature and court would have to go an executive. This would open up the problem of representation, of the large and populous State as against the small ones, of the “satisfied Powers” against the “unsatisfied.” For it is clear that the British Empire will not consent to give to Montenegro equal representation, or the United States to Venezuela. Here will be the question of conflicts between international and national legislation, similar to the conflicts which our Supreme Court is called upon to settle. All the problems of home rule, such as that of Ireland within the Empire, and of Ulster within Ireland, would have to be met in territory like that of the Balkans, by the League of Peace. It would have to determine whether, for example, the sovereignty of a national India was an internal question for the British Empire, or a legitimate subject for international settlement. [Sidenote: The business of such a League.] The League would have to work out the problem of unexploited territories, of weaker peoples, and of disorderly States. Just as our original Union had the whole West to organize, so the League would have Africa, large parts of Asia, and the middle Americas as a kind of international domain. It would have to meet those who want merely to exploit, and to support those who are liberal enough to throw about weaker peoples that protection under which they can really grow to freedom. Nor would that be all. The League would have to legislate about concessions, trading rights, tariffs, about spheres of influence, about the use of great ocean and land highways. As soon as it grappled with the economic aspects of diplomacy, it would find, just as our government found, that interstate commerce cannot be regulated satisfactorily by conflicting state interests. In other words, there is no stopping short at a league to prevent war. Such a league would either grow to a world federalism, or it would break up in civil war. But that, far from being an argument against the League, is the strongest possible argument for it. It is the first step towards a closer world organization, and once that step is taken, the world will have to choose between taking some of the next steps and returning to the anarchy of sovereign nationalities. The vast implications of the League of Peace are what make it important. And its real service to mankind may well be that it will establish the first rallying point of a world citizenship. [Sidenote: It would mean a new world-federalism.]