In any case referred to the Assembly, all the provisions of this Article and of Article 12 relating to the action and powers of the Council shall apply to the action and powers of the Assembly, provided that a report made by the Assembly, if concurred in by the Representatives of those Members of the League represented on the Council and of a majority of the other Members of the League, exclusive in each case of the Representatives of the parties to the {275} dispute, shall have the same force as a report by the Council concurred in by all the Members thereof, other than the Representatives of any of the parties to the dispute; and provided further that in any case referred to the Assembly, the powers of the Council under paragraphs five, six, seven and fourteen hereof shall continue. [Sidenote: 7 of Article 4 of the Protocol.] The provisions of this article do not apply to the settlement of disputes which arise as the result of measures of war taken by one or more Members of the League in agreement with the Council or the Assembly. Article 15a. [Sidenote: From Article 5 of the Protocol.] If in the course of an arbitration, such as is contemplated in Article 15, one of the parties claims that the dispute, or part thereof, arises out of a matter which by international law is solely within the domestic jurisdiction of that party, the arbitrators shall on this point take the advice of the Permanent Court of International Justice through the medium of the Council. The opinion of the Court shall be binding upon the arbitrators, who, if the opinion is affirmative, shall confine themselves to so declaring in their award. If the question is held by the Court or by the Council to be a matter solely within the domestic jurisdiction of the State, this decision shall not prevent consideration of the situation by the Council or by the Assembly under Article 11. Article 15b. [Sidenote: Articles 8 and 7 of the Protocol, slightly changed.] The Members of the League undertake to abstain from any act which might constitute a threat of aggression against another State. If a Member of the League is of opinion that another State is making preparations for war, it shall have the right to bring the matter to the notice of the Council. In the event of a dispute arising between two or more Members of the League, they agree that they will not, either before the dispute is submitted to proceedings for pacific settlement or during such proceedings, make any increase of their armaments or effectives which might modify the position established by any agreement in force, nor will they take any measure of military, naval, air, industrial or economic mobilisation, nor, in general, any action of a nature likely to extend the dispute or render it more acute.