education and industrialism has been, above all other periods, the age of imperialism, of exaggerated nationalism and of colonial wars. Democratic peoples have not been cured of nationalistic ambition, and education, in many countries at least, has aided in the creation of an imperialistic and militaristic spirit. Even our unguided industrialism has not ended wars or brought their end perceptibly nearer. There is no easy road to internationalism and peace, and those who strive for these ends without understanding the genesis and deep lying causes of war are striving in vain.

If in America therefore, we are to contribute to the promotion of internationalism and peace, we must recognise that war is not a mere accident or vagary but a living thing growing out of the deepest roots of our economic life. It is not caused alone by human unreason, by the pride of individuals, the greed of social classes, the prejudices of races and nationalities, but is closely intertwined with those economic ideals upon which the best as well as the worst in our civilisation is reared. We had believed that industrialism and militarism were mutually opposed and that the factory would automatically destroy the army. To-day we see how each of these has entered into the spirit of the other and how each helps the other. The army is industrialised and the national industry is put upon a military, fighting basis. The same forces that impel a nation to develop its trade, increase its output, improve its industrial technique, also impel it to raise large armies and to fight for the things for which men work. To divorce economic ambition from the national aggression that leads to war will not be easy. It is a sobering task which faces those who wish to use America's influence in the cause of peace.

Whatever our course of action, however, whether we strive for an American imperialism or for internationalism, one thing is certain: it cannot be instinctive, fluctuating, undirected. We cannot revolutionise our international relations with each new administration or with each change of the moon. Nor can we stay at home and, ignorant of the causes of war, content ourselves with a long-distance preaching of peace to the menaced nations of Europe. Each of the two courses open to us involves self-direction, valour and strength. If we are to enter upon a struggle for place, power and profits, we must prepare for a dangerous contest: if we are to labour for a new international harmony, for peace and good-will and the delicate adjustments without which these are but words, we shall also need courage—and infinite patience. Without knowledge we shall accomplish nothing. To enter upon an international career without a sense of the conditions underlying peace and war, is to walk in darkness along a dangerous path.

CHAPTER II

THE SKELETON OF WAR

To ascribe world events to the action of a single individual is a naïve yet persistent manner of thought. All over Europe men blamed the war upon a wicked Kaiser, a swaggering, immature Crown Prince, a weak-fisted Von Berchtold, a sinister Tisza, a childish Poincaré, an unscrupulous Sir Edward Grey, an abysmally astute Sasonof. We in America blamed everything on Von Tirpitz and the irrepressible Reventlow. In all countries, millions of men drifted helplessly toward a war, which they believed was due to the evil machinations of a man.

So long as the belief holds that one man can set the world on fire, there can be no reasonable theory of war or peace. It is a conception which makes world destiny a plaything, unmotived in any large sense, accidental and incalculable. On the other hand, those who regard war as merely irrational, a general human idiocy, are equally far from any true approach to the problem. We are being deluged to-day with books and newspaper articles describing war as a reversion of mankind to a lower type, a betrayal of reason, a futile, revolting struggle, creating no rights, settling no problems and serving no useful purpose except, in Lord Salisbury's phrase, "to teach people geography." Let us be rational and adult, cry these authors, adjuring an insane world to return to its sanity.

No wonder that there is prejudice against this particular variety of abstract pacifism. It is a negative doctrine, anæmic and thin-haired, with a touch of gentle intolerance and a patient disregard of facts. It does not recognise the real motives to war, upon which alone a theory of peace may be based. It defeats itself because ultra-rationalistic. For if war, though irrational, has always been, would it not follow that man himself is irrational, that the fighting instinct is deeper than reason, and that to-morrow, as to-day, men will fight for the joy of killing? If this were true, pacifism might as well resign. In truth, this interpretation of war as a mere expression of man's fighting instincts is no more adequate than is the personal devil theory. War has outgrown the fighting instinct. It has become deliberate, businesslike, scientific. It demands sacrifices from those to whom fighting is an abomination. How many red-blooded warriors could the German Emperor or the French President have enrolled, had there been no appeal to national interest, duty, justice, indignation? War is won to-day by peace-loving men, who abhor the arms in their hands.

The closer we study its motives, incentives and origins, the more deeply do we find the elements of this problem imbedded in the very foundations of national or group life. War depends upon growth in population, emigration, the use of natural resources, agricultural progress, trade development, distribution of wealth, taxation. It is never unrelated to the economic web in which the people live their lives; it is seldom unaffected by the necessity of expanding and the opposition of neighbours, the desire for bread and the longing for luxuries. War and peace are functions of the national life, steps in national progress or retrogression. Peace and war are two paths leading often in the same general direction, and whether we may take one path or must take the other is often determined for us long before we reach this parting of the ways.

At first glance this economic or business side of war is obscured. We find tribes and nations fighting for women and heads and scalps, to please the gods, to destroy sorcerers, to slay heretics, to show prowess, and for other reasons which seem equally remote from an economic motive. A nation will go to war "to save its face," or to annihilate the "hereditary enemy," as well as to improve its position in the world. Yet these diverse human motives are related to, though not fully absorbed in, the omnipresent economic motive. The "hereditary enemy" usually is no other than the tribe or nation that blocks our way; the "gods" enjoin war against neighbours who occupy the lands we need or can furnish us tribute; the women, whom we capture, are tame and pleasant beasts of burden, who help to swell our numbers. As for pride and tribal vanity, which so often precipitate war, these are a powerful social bond, which by holding the tribe together permits it to conquer the things it needs. A war for prestige is often a war for economic gain once removed. There remains a residue of martial emotion, not so closely united with the desire for economic gain, but all these derivative motives do not prevent the economic factor from remaining preponderant. Remove the economic factors leading to war, give men more than enough, and the chief incentive to war disappears.

The modern historical trend has been towards a fuller recognition of the influence of this potent, though often disguised, motive to war. Historians are recognising that the