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Perpetual Peace: A Philosophical Essay

Immanuel Kant

Contract_) “by which a nation may receive a foreign master, by marriage or a will, is not extremely honourable for the people; but supposes them to be disposed of, like a dowry or a legacy, according to the pleasure or interest of their rulers.” [Tr.] For a state is not a property (_patrimonium_), as may be the ground on which its people are settled. It is a society of human beings over whom no one but itself has the right to rule and to dispose. Like the trunk of a tree, it has its own roots, and to graft it on to another state is to do away with its existence as a moral person, and to make of it a thing. Hence it is in contradiction to the idea of the original contract without which no right over a people is thinkable.[111] Everyone knows to what danger the bias in favour of these modes of acquisition has brought Europe (in other parts of the world it has never been known). The custom of marriage between states, as if they were individuals, has survived even up to the most recent times,[112] and is regarded partly as a new kind of industry by which ascendency may be acquired through family alliances, without any expenditure of strength; partly as a device for territorial expansion. Moreover, the hiring out of the troops of one state to another to fight against an enemy not at war with their native country is to be reckoned in this connection; for the subjects are in this way used and abused at will as personal property. [111] An hereditary kingdom is not a state which can be inherited by another state, but one whose sovereign power can be inherited by another physical person. The state then acquires a ruler, not the ruler as such (that is, as one already possessing another realm) the state. [112] This has been one of the causes of the extraordinary admixture of races in the modern Austrian empire. Cf. the lines of Matthias Corvinus of Hungary (quoted in Sir W. Stirling Maxwell’s _Cloister Life of Charles the Fifth_, Ch. I., _note_):— “Bella gerant alii, tu, felix Austria, nube! Nam quae Mars aliis, dat tibi regna Venus.” [Tr.] 3.—“Standing armies (_miles perpetuus_) shall be abolished in course of time.” For they are always threatening other states with war by appearing to be in constant readiness to fight. They incite the various states to outrival one another in the number of their soldiers, and to this number no limit can be set. Now, since owing to the sums devoted to this purpose, peace at last becomes even more oppressive than a short war, these standing armies are themselves the cause of wars of aggression, undertaken in order to get rid of this burden. To which we must add that the practice of hiring men to kill or to be killed seems to imply a use of them as mere machines and instruments in the hand of another (namely, the state) which cannot easily be reconciled with the right of humanity in our own person.[113] The matter stands quite differently in the case of voluntary periodical military exercise on the part of citizens of the state, who thereby seek to secure themselves and their country against attack from without. [113] A Bulgarian Prince thus answered the Greek Emperor who magnanimously offered to settle a quarrel with him, not by shedding the blood of his subjects, but by a duel:—“A smith who has tongs will not take the red-hot iron from the fire with his hands.” (This note is a-wanting in the second Edition of 1796. It is repeated in Art. II., see p. 130.) [Tr.] The accumulation of treasure in a state would in the same way be regarded by other states as a menace of war, and might compel them to anticipate this by striking the first blow. For of the three forces, the power of arms, the power of alliance and the power of money, the last might well become the most reliable instrument of war, did not the difficulty of ascertaining the amount stand in the way. 4.—“No national debts shall be contracted in connection with the external affairs of the state.” This source of help is above suspicion, where assistance is sought outside or within the state, on behalf of the economic administration of the country (for instance, the improvement of the roads, the settlement and support of new colonies, the establishment of granaries to provide against seasons of scarcity, and so on). But, as a common weapon used by the Powers against one another, a credit system under which debts go on indefinitely increasing and are yet always assured against immediate claims (because all the creditors do not put in their claim at once) is a dangerous money power. This ingenious invention of a commercial people in the present century is, in other words, a treasure for the carrying on of war which may exceed the treasures of all the other states taken together, and can only be exhausted by a threatening deficiency in the taxes—an event, however, which will long be kept off by the very briskness of commerce resulting from the reaction of this system on industry and trade. The ease, then, with which war may be waged, coupled with the inclination of rulers towards it—an inclination which seems to be implanted in human nature—is a great obstacle in the way of perpetual peace. The prohibition of this system must be laid down as a preliminary article of perpetual peace, all the more necessarily because the final inevitable bankruptcy of the state in question must involve in the loss many who are innocent; and this would be a public injury to these states. Therefore other nations are at least justified in uniting themselves against such an one and its pretensions. 5.—“No state shall violently interfere with the constitution and administration of another.” For what can justify it in so doing? The scandal which is here presented to the subjects of another state? The erring state can much more serve as a warning by exemplifying the great evils which a nation draws down on itself through its own lawlessness. Moreover, the bad example which one free person gives another, (as _scandalum acceptum_) does no injury to the latter. In this connection, it is true, we cannot count the case of a state which has become split up through internal corruption into two parts, each of them representing by itself an individual state which lays claim to the whole. Here the yielding of assistance to one faction could not be reckoned as interference on the part of a foreign state with the constitution of another, for here anarchy prevails. So long, however, as the inner strife has not yet reached this stage the interference of other powers would be a violation of the rights of an independent nation which is only struggling with internal disease.[114] It would therefore itself cause a scandal, and make the autonomy of all states insecure. [114] See Vattel: _Law of Nations_, II. Ch. IV. § 55. No foreign power, he says, has a right to judge the conduct and administration of any sovereign or oblige him to alter it. “If he loads his subjects with taxes, or if he treats them with severity, the nation alone is concerned; and no other is called upon to offer redress for his behaviour, or oblige him to follow more wise and equitable maxims.... But (_loc. cit._ § 56) when the bands of the political society are broken, or at least suspended, between the sovereign and his people, the contending parties may then be considered at two distinct powers; and, since they are both equally independent of all foreign authority, nobody has a right to judge them. Either may be in the right; and each of those who grant their assistance may imagine that he is giving his support to the better cause.” [Tr.] 6.—“No state at war with another shall countenance such modes of hostility as would make mutual confidence impossible in a subsequent state of peace: such are the employment of assassins (_percussores_) or of poisoners (_venefici_), breaches of capitulation, the instigating and making use of treachery (_perduellio_) in the hostile state.” These are dishonourable stratagems. For some kind of confidence in the disposition of the enemy must exist even in the midst of war, as otherwise peace could not be concluded, and the hostilities would pass into a war of extermination (_bellum internecinum_). War, however, is only our wretched expedient of asserting a right by force, an expedient adopted in the state of nature, where no court of justice exists which could settle the matter in dispute. In circumstances like these, neither of the two parties can be called an unjust enemy, because this form of speech presupposes a legal decision: the issue of the conflict—just as in the case of the so-called judgments of God—decides on which side right is. Between states, however, no punitive war (_bellum punitivum_) is thinkable, because between them a relation of superior and inferior does not exist. Whence it follows that a war of extermination, where the process of annihilation would strike both parties at once and all right as well, would bring about perpetual peace only in the great graveyard of the human race. Such a war then, and therefore also the use of all means which lead to it, must be absolutely forbidden. That the methods just mentioned do inevitably lead to this result is obvious from the fact that these infernal arts, already vile in themselves, on coming into use, are not long confined to the sphere of war. Take, for example, the use of spies (_uti exploratoribus_). Here only the dishonesty of others is made use of; but vices such as these, when once encouraged, cannot in the nature of things be stamped out and would be carried over into the state of peace, where their presence would be utterly destructive to the purpose of that state. Although the laws stated are, objectively regarded, (_i.e._ in so far as they affect the action of rulers) purely prohibitive laws (_leges prohibitivæ_), some of them (_leges strictæ_) are strictly valid without regard to circumstances and urgently require to be enforced. Such are Nos. 1, 5, 6. Others, again, (like Nos. 2, 3, 4) although not indeed exceptions to the maxims of law, yet in respect of the practical application of these maxims allow subjectively of a certain latitude to suit particular circumstances. The enforcement of these _leges latæ_ may be legitimately put off, so long as we do not lose sight of the ends at which they aim. This purpose of reform does not permit of the deferment of an act of restitution (as, for example, the restoration to certain states of freedom of which they have been deprived in the manner described in article 2) to an infinitely distant date—as Augustus used to say, to the “Greek Kalends”, a day that will never come. This would be to sanction non-restitution. Delay is permitted only with the intention that restitution should not be made too precipitately and so defeat the purpose we have in view. For the prohibition refers here only to the _mode of acquisition_ which is to be no longer valid, and not to the _fact of possession_ which, although indeed it has not the necessary title of right, yet at the time of so-called acquisition was held legal by all states, in accordance with the public opinion of the time.[115] [115] It has been hitherto doubted, not without reason, whether there can be laws of permission (_leges permissivæ_) of pure reason as well as commands (_leges præceptivæ_) and prohibitions (_leges prohibitivæ_). For law in general has a basis of objective practical necessity: permission, on the other hand, is based upon the contingency of certain actions in practice. It follows that a law of permission would enforce what cannot be enforced; and this would involve a contradiction, if the object