_Second case of Compulsory Arbitration_.--If the Council does not arrive at a unanimous decision, it has to submit the dispute {179} to the judgment of a Committee of Arbitrators, but this time, owing to the parties being deemed to have handed their case over to the Council, the organisation of the arbitration procedure is taken entirely out of their hands. It will be for the Council to settle all the details, the composition, the powers and the procedure of the Committee of Arbitrators. The Council is of course at liberty to hear the parties and even to invite suggestions from them, but it is under no obligation to do so. The only regulation with which it must comply is that, in the choice of arbitrators, it must bear in mind the guarantees of competence and impartiality which, by their nationality, their personal character and their experience, these arbitrators must always furnish. _Article 4. paragraph 6._ _Effect of, and Sanction enforcing, Decisions_.--Failing a friendly arrangement, we are, thanks to the system adopted, in all cases certain of arriving at a final solution of a dispute, whether in the form of a decree of the Permanent Court of International Justice or in the form of an arbitral award or, lastly, in the form of a unanimous decision of the Council. To this solution the parties are compelled to submit. They must put it into execution or comply with it in good faith. If they do not do so, they are breaking an engagement entered into towards the other signatories of the Protocol, and this breach involves consequences and sanctions according to the degree of gravity of the case. If the recalcitrant party confines itself to offering passive resistance to the solution arrived at, it will first be the object of pacific pressure from the Council, which must exercise all its influence to persuade it to respect its engagements. If the Council is unsuccessful, it must propose measures calculated to ensure effect being given to the decision. On this point the Protocol has been guided solely by the regulation contained at the end of Article 13 of the Covenant. The {180} Council may thus institute against the recalcitrant party collective sanctions of an economic and financial order. It is to be supposed that such sanctions will prove sufficient. It has not appeared possible to go further and to employ force against a State which is not itself resorting to force. The party in favour of which the decision has been given might, however, employ force against the recalcitrant party if authorised to do so by the Council. But if the State against which the decision has been given takes up arms in resistance thereto, thereby becoming an aggressor against the combined signatories, it deserves even the severe sanctions provided in Article 16 of the Covenant, interpreted in the manner indicated in the present Protocol.