The Future of International Law

by L. Oppenheim

[59.] But, incredible as it may sound, this is not generally recognized. It is just among the old champions of the arbitral decision of international disputes that the most violent opposition is raised to the erection of a real court of justice for international law causes. In such a court they see a great danger for the future. The fact that arbitration has a tendency to furnish rather a decision which is as far as possible satisfactory to both parties than one which is based on naked law, is just the respect which, in the eyes of many, gives it a higher value than a real court possesses. Not jural but peaceable settlement of disputes is the motto of these men; they do not desiderate justice in the sense of existing law, but equity such as contents both parties. And they gain support and approval from those who see in the law of nations rather a diplomatic than a legal branch of knowledge, and who therefore resist the upbuilding of the law of nations on the foundation of firmer, more precise, and more sharply defined rules on the analogy of the municipal law of states. These persons range themselves against an international court because such a court would apply the rules of the law of nations to disputed cases in the same way in which the courts of a state apply the rules of municipal law to disputed cases arising within the state; they prefer diplomatic or, at any rate, arbitral settlement of disputes between states to the purely legal decision thereof. They also contend that an international court without an international power of execution is an absurdity.

A real international court does not endanger the peaceable settlement of disputes.

[60.] This last objection has already been dealt with above (paragraph 55), where it is shown that a judicial award as an authoritative declaration of the legitimate character of an act or claim has, in and for itself, nothing to do with the governmental execution of the award. But as to the fear that the erection of an international court might endanger the peaceable settlement of disputes and the development of international arbitration, that is certainly groundless. The contrary is the case, as is shown by the fact that the happy movement towards the erection of an international court was initiated by the United States of North America. This country, which since its entry into the international community of states has more than any other championed the idea of the arbitral adjustment of disputes, and has in practice put it to good use, is well aware of the value of arbitration, but, on the other hand, it knows also how to prize the purely legal decision of legal questions. It has actually happened that a state has not ventured to submit a certain dispute to arbitration because it feared that its claim would not receive jural treatment in this way. It is just because the existence of an international court would promote the non-warlike settlement of international claims that its erection has been put forward. The reason is that even with the most careful selection of arbiters, one is never certain beforehand as to the quarter whence they will derive their ideas of the aequum et bonum, whilst with a jural settlement of claims the decision rests on the sure basis of law. Further, the erection of an international court is not intended to cause the suppression of the so-called Permanent Court of Arbitration; on the contrary, the machinery of this latter is to be retained in full existence, so that the parties may in every case be able to choose between the Court of Arbitration and a real court. The future will show that both can render good service side by side.

Composition of an international court.

[61.] If the erection of an international court comes to pass, the equipment of it with competent and worthy men will be of the highest importance. Their selection will have difficulties of all sorts to overcome. The peculiar character of international law, the conflict between the positive school and the school which would derive international law from natural law, the diversity of peoples (consequent on diversity of speech and of outlook on law and life) and of legal systems and of constitutional conceptions, and the like—all these bring the danger that the court in question should become the arena of national jealousies, of empty talk, and of political collisions of interest, instead of being the citadel of international justice. All depends on the spirit in which the different governments make the choice of judges. Let regard be paid to a good acquaintance with international law joined to independence, judicial aptitude, and steadfastness of character. Let what is expected of candidates be the representation not of political interests but of the interests of international jurisprudence. Let nomination be made not of such diplomatists as are conversant with the law of nations, but of jurists who, while conversant with this branch of law, have had the training required of members of the highest state judiciary, and have been tested in practice. Let men be chosen who are masters not only of their own language and of French, but also of some other of the most widely diffused languages, and who possess an acquaintance with foreign legal systems. If this be done, all danger will be avoided. Judges so selected will speedily adapt themselves to the milieu of the international court and be laid hold of by it, and their equipment for their task completed. As things are at present, the institution of an international court is an unheard-of experiment. But the experiment must be made at some time, and the hope may be confidently entertained that it will be successful. Petty considerations based on the weakness of humanity and doubts as to the sincerity of the efforts of states to submit themselves voluntarily to international tribunals must be silenced. Fear of international entanglements and groupings is misplaced. National prejudices and rivalries must keep in the background. The big state's disdain of the little state and the little state's mistrust of the big state must give place to mutual respect. Opposed to the hope and confidence that the experiment will succeed there are no considerations other than those which have been arrayed against every step forward in international life. They will disappear like clouds when the sun of success has once begun to shine upon the activity of the International Court.

International courts of appeal a necessity.

[62.] Obviously it will not be possible in the long run to stop at a single international court; the erection over the court of first instance of an international court of appeal is also a necessity. The proposed Prize Court will indeed be itself a court of appeal because it cannot be approached until one or two national courts have spoken. But the proposed International Court of Justice would be a court of first instance. Now there are no infallible first-instance decisions. Even courts are fallible and make mistakes. If this is universally recognized for municipal administration of justice, it must be recognized for international administration of justice, all the more as public and not private interests are then in issue. If states are to feel bound to rely on their right rather than on their might, and to submit it to a judicial decision, it must be possible to carry an appeal against a decision of the International Court of Justice to a higher tribunal. Many advocates of arbitration will not hear of an appeal. In this they may be right as regards a real arbitral decision given ex aequo et bono, but their arguments lose all force before the nakedly jural decision of a real court.

The difficulties which beset the erection of an international court and the appointment of its members may lead to the renunciation of the immediate establishment of an international court of appeal. But when once the International Court is in active working, the demand for a court of appeal will be raised and it will not be silenced until it has been satisfied. It would be premature to make proposals now as to the manner in which such a court of appeal ought to be composed, and as to the way in which it could be brought into existence. It is enough to have pointed to the need for it. Directly this need makes itself felt, ways and means will be found for supplying it.

Are international courts valueless if states are not bound to submit their disputes to them?

[63.] We next are faced by the objection, what possible value can the establishment of international courts possess if it be optional to states either to submit their causes to them or to rely on arms for a decision of those causes? It is, accordingly, asserted that such courts can only be of value if states place themselves under a permanent obligation to submit to them all or at any rate the greater number of their disputes. This leads to the question of obligatory arbitration treaties, which played so prominent a part at the second Peace Conference, and will surely come up again at the third Conference. I have not the slightest doubt that the third or some later Conference will agree on the obligatory reference of certain disputes between states to arbitration, but the matter is of quite subordinate importance so far as the erection of international courts is in question. Any one who contemplates international life and the relations of states to one another, without prejudice and with open eyes, will see quite clearly that, when once there exist international courts, states will voluntarily submit a whole series of cases to them. These will, at first, admittedly, be cases of smaller importance for the most part, but in time more important cases will also come to them, provided that the jurisprudence developed in them is of high quality, and such as to give states a guarantee for decisions at once impartial and purely jural and free from all political prepossessions. It is the existence of the institution which is the vital question now. Once the machinery is there, it will be utilized. In all states of the world there are movements and forces at work to secure the ordered and law-protected settlement of international disputes. The existence of an international court will strengthen these movements and forces and render them so powerful that states will scarcely be able to withdraw themselves from their influence. And the time when states were ready to draw the sword on every opportunity belongs to the past. Even for the strongest state war is now an evil, to which recourse is had only as ultima ratio, when no other way out presents itself.