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War in Classical Times.

In early times, there were no friendly neighbouring nations: beyond the boundaries of every[p. 7] nation's territory, lay the land of a deadly foe. This was the way of thinking, even of so highly cultured a people as the Greeks, who believed that a law of nature had made every outsider, every barbarian their inferior and their enemy.[7] Their treaties of peace, at the time of the Persian War, were frankly of the kind denounced by Kant, mere armistices concluded for the purpose of renewing their fighting strength. The ancient world is a world of perpetual war in which defeat meant annihilation. In the East no right was recognised in the enemy; and even in Greece and Rome the fate of the unarmed was death or slavery.[8] The[p. 8] barbaric or non-Grecian states had, according to Plato and Aristotle, no claim upon humanity, no[p. 9] rights in fact of any kind. Among the Romans things were little better. According to Mr. T. J. Lawrence---see his Principles of International Law, III., 21, 22---they were worse. For Rome stood alone in the world: she was bound by ties of kinship to no other state. She was, in other words, free from a sense of obligation to other races. War, according to Roman ideas, was made by the gods, apart altogether from the quarrels of rulers or races. To disobey the sacred command, expressed in signs and auguries would have been to hold in disrespect the law and religion of the land. When, in the hour of victory, the Romans refrained from pressing their rights against the conquered---rights recognised by all Roman jurists---it was from no spirit of leniency, but in the pursuit of a prudent and far-sighted policy, aiming at the growth of Roman supremacy and the establishment of a world-embracing empire, shutting out all war as it blotted out natural boundaries, reducing all rights to the one right of imperial citizenship. There was no real jus belli, even here in the cradle of international law; the only limits to the fury of war were of a religious character.

The treatment of a defeated enemy among the Jews rested upon a similar religious foundation. In the East, we find a special cruelty in the conduct of war. The wars of the Jews and Assyrians were[p. 10] wars of extermination. The whole of the Old Testament, it has been said, resounds with the clash of arms.[9] "An eye for an eye, a tooth for a tooth!" was the command of Jehovah to his chosen people. Vengeance was bound up in their very idea of the Creator. The Jews, unlike the followers of Mahomet, attempted, and were commanded to attempt no violent conversion[10]; they were then too weak a nation; but they fought, and fought with success against the heathen of neighbouring lands, the Lord of Hosts leading them forth to battle. The God of Israel stood to his chosen people in a unique and peculiarly logical relation. He had made a covenant with them; and, in return for their obedience and allegiance, cared for their interests and advanced their national prosperity. The blood of this elect people could not be suffered to intermix with that of idolaters. Canaan must be cleared of the heathen, on the coming[p. 11] of the children of Israel to their promised land; and mercy to the conquered enemy, even to women, children or animals was held by the Hebrew prophets to be treachery to Jehovah. (Sam. XV.; Josh. VI. 21.)

Hence the attitude of the Jews to neighbouring nations[11] was still more hostile than that of the Greeks. The cause of this difference is bound up with the transition from polytheism to monotheism. The most devout worshipper of the national gods of ancient times could endure to see other gods than his worshipped in the next town or by a neighbouring nation. There was no reason why all should not exist side by side. Religious conflicts in polytheistic countries, when they arose, were due not to the rivalry of conflicting faiths, but to an occasional attempt to put one god above the others in importance. There could be no interest here in the propagation of belief through the sword. But, under the Jews, these relations were entirely altered. Jehovah, their Creator, became the one invisible God. Such an one can suffer no others near him; their existence is a continual insult to him. Monotheism is, in its very nature, a religion of intolerance. Its spirit among the Jews was warlike: it commanded[p. 12] the subjugation of other nations, but its instrument was rather extermination than conversion.

The Attitude of Christianity and the Early Church to War.

From the standpoint of the peace of nations, we may say that the Christian faith, compared with other prominent monotheistic religious systems, occupies an intermediate position between two extremes---the fanaticism of Islam, and to a less extent of Judaism, and the relatively passive attitude of the Buddhist who thought himself bound to propagate his religion, but held himself justified only in the employment of peaceful means. Christianity, on the other hand, contains no warlike principles: it can in no sense be called a religion of the sword, but circumstances gave the history of the Church, after the first few centuries of its existence, a character which cannot be called peace-loving.

This apparent contradiction between the spirit of the new religion and its practical attitude to war has led to some difference of opinion as to the actual teaching of Christ. The New Testament seems, at a superficial glance, to furnish support as readily to the champions of war as to its denouncers. The Messiah is the Prince of Peace (Is. IX. 6, 7; Heb. VI.), and here lies the way of[p. 13] righteousness (Rom. III. 19): but Christ came not to bring peace, but a sword (Matth. X. 34). Such statements may be given the meaning which we wish them to bear---the quoting of Scripture is ever an unsatisfactory form of evidence; but there is no direct statement in the New Testament in favour of war, no saying of Christ which, fairly interpreted, could be understood too regard this proof of human imperfection as less condemnable than any other.[12] When men shall be without sin, nation shall rise up against nation no more. But man the individual can attain peace only when he has overcome the world, when, in the struggle with his lower self, he has come forth victorious. This is the spiritual sword which Christ brought into the world---strife, not with the unbeliever, but with the lower self: meekness and the spirit of the Word of God are the weapons with which man must fight for the Faith.

An elect people there was no longer: Israel had rejected its Messiah. Instead there was a complete brotherhood of all men, the bond and the free, as children of one God. The aim of the Church was a world-empire, bound together by a universal religion. In this sense, as sowing the first seeds of a universal peace, we may speak[p. 14] of Christianity as a re-establishment of peace among mankind.

The later attitude of Christians to war, however, by no means corresponds to the earliest tenets of the Church. Without doubt, certain sects, from the beginning of our era and through the ages up to the present time, held, like the Mennonites and Quakers in our day, that the divine command, "Love your enemies," could not be reconciled with the profession of a soldier. The early Christians were reproached under the Roman Emperors, before the time of Constantine, with avoiding the citizen's duty of military service.[13] "To those enemies of our faith," wrote Origen (Contra Celsum, VIII., Ch. LXXIII., Anti-Nicene Christian Library), "who require us to bear arms for the commonwealth, and to slay men, we can reply: 'Do not those who are priests at certain shrines, and those who attend on certain gods, as you account them, keep their hands free from blood, that they may with hands unstained and free from human blood offer the appointed sacrifices to your[p. 15] gods; and even when war is upon you, you never enlist the priests in the army. If that, then, is a laudable custom, how much more so, that while others are engaged in battle, these too should engage as the priests and ministers of God, keeping their hands pure, and wrestling in prayers to God on behalf of those who are fighting in a righteous cause, and for the king who reigns righteously, that whatever is opposed to those who act righteously may be destroyed!' ... And we do take our part in public affairs, when along with righteous prayers we join self-denying exercises and meditations, which teach us to despise pleasures, and not to be led away by them. And none fight better for the king than we do. We do not indeed fight under him, although he require it; but we fight on his behalf, forming a special army---an army of piety---by offering our prayers to God." The Fathers of the Church, Justin Martyr, Clement of Alexandria, Tertullian, Ambrose and the rest gave the same testimony against war. The pagan rites connected with the taking of the military oath had no doubt some influence in determining the feeling of the pious with regard to this life of bloodshed; but the reasons lay deeper. "Shall it be held lawful," asked Tertullian, (De Corona, p. 347) "to make an occupation of the sword, when the Lord proclaims that he who uses the sword shall perish[p. 16] by the sword? And shall the son of peace take part in the battle when it does not become him even to sue at law? And shall he apply the chain, and the prison, and the torture, and the punishment, who is not the avenger even of his own wrongs?"