3. The Council intervenes, and if, after arbitration has been refused, war is resorted to, if the provisional preventive measures are not observed, etc., the Council decides which party is the aggressor and calls upon the signatory States to apply the sanctions. 4. This decision implies that such sanctions as the case requires--economic, financial, military, naval and air--shall be applied forthwith, and without further recommendations or decisions. We have therefore the following new elements: (_a_) The obligation to apply the necessary sanctions of every kind as a direct result of the decision of the Council. (_b_) The elimination of the case in which all parties would be practically free to abstain from any action. The introduction of a system of arbitration and of provisional measures which permits of the determination in every case of the aggressor. (_c_) No decision is taken as to the strength of the military, naval and air forces, and no details are given as to the measures which are to be adopted in a particular case. None the less, objective criteria are supplied which define the obligation of each signatory; it is bound, in resistance to an act of aggression, to collaborate _loyally and effectively_ in applying the sanctions in accordance with its geographical situation and its particular situation as regards armaments. That is why I said that _the great omission in the Covenant has been made good_. {202} It is true that no burden has been imposed on States beyond the sanctions already provided for in the Covenant. But, at present, a State seeking to elude the obligations of the Covenant can reckon on two means of escape: (1) The Council's recommendations need not be followed. (2) The Council may fail to obtain unanimity, making impossible any declaration of aggression, so that no obligation to apply military sanctions will be imposed and everyone will remain free to act as he chooses. We have abandoned the above system and both these loopholes are now closed. _Article 11, paragraphs 3 and 4._ Paragraph 3 of Article 11 has been drafted with a view to giving greater precision to certain provisions of Article 11, paragraph 3, of the Covenant. Article 16, paragraph 3, refers to mutual support in the application of financial and economic measures. Article 11, paragraph 3, of the present Protocol establishes real economic and financial co-operation between a State which has been attacked and the various States which come to its assistance.