Article XIV. Provides for the establishment of an international court of justice to hear and determine any matters suitable for submission to it for arbitration. Article XV. Disputes between members of the League not submitted to arbitration shall be referred to the executive council. If the dispute has not been settled, a report by the council shall be published and recommendation made by the council for the settlement of the difficulty. If the report is unanimously agreed to by the council other than the parties to the dispute, the high contracting parties agree that they will not go to war with any party which complies with the recommendations. Article XVI. "Should any of the high contracting parties break or disregard its covenants under Article XII, it shall thereby ipso facto be deemed to have committed an act of war against all the other members of the League, which hereby immediately undertakes to subject it to the severance of all intercourse between their nationals, trade or financial relations, the prohibition of all intercourse between their nationals and the nationals of the covenant-breaking state, and the prevention of all financial, commercial, or personal intercourse between the nationals of the convenant-breaking state and the nationals of any other state, whether a member of the League or not. "It shall be the duty of the executive committee council in such a case to recommend what effective military or naval force the members of the League shall severally contribute to the armed forces to be used to protect the covenant of the League." This article further states that the high contracting parties agree to mutually support each other financially and economically, and in resisting any special measures aimed at one of their number by the convenant-breaking state. Article XVII. Considers disputes between one state member of the League and another state which is not a member of the League, or between states not members of the League. In such event the high contracting parties invite the state, or states, not members of the League to become members and accept the obligations of the League membership for the dispute in such conditions as the executive council shall deem just. The executive council will immediately inquire into the merits of the dispute and recommend such action as may be deemed just and equitable. Any Power refusing to accept the obligations of membership in the League for the purposes of the League would constitute a breach of Article XII. The provisions of Article XVI shall be applicable too against a state taking such action. Article XVIII. In this article the League is empowered with general supervision of the trade in arms and ammunition with countries where control of the traffic is necessary.