3.--Owing to the close connection through modern means of communication between one nation and another and the way in which their interests are interlocked, a war between two States is liable to develop into a world war. If one nation endeavours to promote its interests by imposing its will by force on another, the other nations must either stand by while the injury is done, in which case it is almost certain that the injury will be repeated by subsequent attacks on some of them, or the nations must league themselves together to prevent aggression and the assertion of the claim to ascendancy. 4.--The complete defeat of Germany, and the punishment thereby inflicted on the German rulers and the people who have supported them, will be the best vindication of the principles of international justice possible, and will operate as a sanction for international morality and a warning against future aggressions or claims to dominate put forward by Germany or any other State. 5.--The defeat of Germany in the present War, followed by subsequent pressure on Germany through economic boycott or else by a clearly proved change in the principles and aims of the German nation, accompanied by a definite repudiation of the persons and the policy and organisation which have led to the War, is absolutely essential for the future peace of the world. 6.--The formation of a League of Nations willing to bind themselves together for common objects, of which the prevention of war is the most important, may not only be the most effective way of securing peace but also provide a means for the consideration and adoption of measures intended for the common welfare of all. Such a League may, probably must, come into existence, and its aims and methods be formulated, before Germany and her Allies could be admitted to it; but as soon as Germany and her Allies can give adequate assurances that they will adopt and be bound by the principles laid down as the foundation of the League, they should be admitted to it. Until this is possible the League must partake of the nature of a defensive alliance rather than of a world-wide league of peace. 7.--Whether any definite sanction for enforcing the principles on which the League is founded and the stipulations which it contains can be imposed or not, the League may be of great value by giving the weight of international opinion expressly to those principles. Public opinion of the nations so expressed might often be effective even though not enforced by a definite sanction. 8.--Of the two definite sanctions proposed, namely, (_a_) the so-called "economic boycott" and (_b_) the use of the naval and military forces of the leagued States or of certain States selected from them by arrangement, the economic boycott which can readily be applied by all members of the League alike, and that without keeping up any large armaments, is likely to be effective and is free from the most serious objections against the other sanction suggested.