The expenses of the Secretariat shall be borne by the members of the League in accordance with the apportionment of the expenses of the International Bureau of the Universal Postal Union. Article Seven [League Capital; Status of Officials and Property; Sex Equality] The seat of the League is established at Geneva. The Council may at any time decide that the seat of the League shall be established elsewhere. All positions under or in connection with the League, including the Secretariat, shall be open equally to men and women. Representatives of the members of the League and officials of the League when engaged on the business of the League shall enjoy diplomatic privileges and immunities. The buildings and other property occupied by the League or its officials or by representatives attending its meetings shall be inviolable. Article Eight [Disarmament] The members of the League recognize that the maintenance of a peace requires the reduction of national armaments to the lowest point consistent with the national safety and the enforcement by common action of international obligations. The Council, taking account of the geographical situation and circumstances of each state, shall formulate plans for such reduction for the consideration and action of the several governments. Such plans shall be subject to reconsideration and revision at least every ten years. After these plans shall have been adopted by the several governments, limits of armaments therein fixed shall not be exceeded without the concurrence of the Council. The members of the League agree that the manufacture by private enterprise of munitions and implements of war is open to grave objections. The Council shall advise how the evil effects attendant upon such manufacture can be prevented, due regard being had to the necessities of those members of the League which are not able to manufacture the munitions and implements of war necessary for their safety. The members of the League undertake to interchange full and frank information as to the scale of their armaments, their military and naval programmes and the condition of such of their industries as are adaptable to warlike purposes. Article Nine [Disarmament Commission] A permanent commission shall be constituted to advise the Council on the execution of the provisions of Articles One and Eight and on military and naval questions generally. Article Ten [Territorial and Political Guarantees] The members of the League undertake to respect and preserve as against external aggression the territorial integrity and existing political independence of all members of the League. In case of any such aggression or in case of any threat or danger of such aggression, the Council shall advise upon the means by which this obligation shall be fulfilled. Article Eleven [Joint Action to Prevent War]