The executive council shall consist of representatives of the United States of America, British Empire, France, Italy, and Japan, and representatives of four other states members of the League. Meetings shall be held as occasion requires and at least once a year. Any Power shall be invited to attend a meeting of the council when matters concerning its interests are to be discussed. The first meeting of the body of delegates shall be summoned by the President of the United States. Admission to the League of states not signatories to the covenant requires the assent of not less than two-thirds of the states represented in the body of delegates. Only full self-governing countries or dominions shall be admitted. Article VIII. Provides that the executive council shall determine for the consideration of the several governments what military equipment and armament is fair in proportion to the scale of forces, laid down in the program of disarmament. The high contracting parties agree to examine the manufacture by private enterprise of war material and direct the executive council to advise how to prevent the evil effects attendant on such manufacture, respecting the need of those countries that cannot manufacture munitions and war implements necessary for their safety. Article IX. Permanent commission shall be constituted to advise the council on the execution of the provisions of articles I and VIII and on military and, naval questions generally. Article X. This and the two following, as among the most important articles in the constitution, and which became the subject of heated controversy, must be given in full: "The high contracting parties shall undertake to respect and preserve against external aggression the territorial integrity and existing political independence of all the states members of the League. In case of any such aggression, or in case of any threat of danger of such aggression, the executive council shall advise upon the means by which the obligation shall be fulfilled." Article XI. States that any war, or threat of war, is a matter of concern to the League, and the high contracting parties reserve the right to take such action as will conserve the peace of nations. Article XII. States in effect that if disputes arise that cannot be adjusted by the ordinary processes of diplomacy no resort to war will be made until the questions involved are submitted for arbitration of the executive council. Until three months after the award by the arbitrators war will not even then be resorted to against a member of the League which complies with the award of the arbitrators, or the recommendation of the executive council. Article XIII. The high contracting parties agree that disputes or difficulties arising between them which cannot be settled by diplomacy they will submit the whole matter to arbitration. They agree to carry out in good faith any award that may be rendered.