Germany's inclination to preventive wars, her incessant plea of being about to be attacked, can by no means be interpreted as pure deception, or as an effort to make political capital. Germany's army was primarily for defense, because a defensive strategy is the only strategy that Germany with her position and her temperament can adopt. Germany's great army was Germany's compensation, in consciousness, for the insignificance of her territory. It was for defense. It was also a compensation for a feeling of inferiority, in Adler's sense. Fanaticism, envy, depreciation of others, aggression, morbid and excessive ambition were all fruits from the same stem. The gloom which many have found in German life, and the pessimism in German philosophy, we may explain in part by the experiences of Germany as the scene of so many devastating wars. Upon the background of fear, in our interpretation of aggressive motives, is erected German autocracy, German ambition and the conception of the absolute State, which may be interpreted as almost a specific fear reaction. It comes in time to have other meanings, and like many instinctive reactions, it may be put to uses for which it was not originally produced, but there is fear concealed in the heart of it. How action can be both defensive and strongly aggressive, then, is no mystery if we see that aggression may be a fear reaction, that even the most ardent imperialism is based in part upon fear, upon the consciousness at some time of being weak and inferior.

Fear and suspicion cause aggressive wars even when the fear may be, in all reason, groundless. There is no more dangerous individual in the community than the one having delusions of persecution, for his mania is naturally homicidal. So with nations. Fear is a treacherous and deceptive passion. We may see this fear, if we choose to look for it, even in the ecstatic mood of war and the spiritual exaltation of Germany during the first few weeks or months of the war. This exaltation was in part a reaction of fear—or a reaction from fear. Germany was afraid, feared for her existence, and the exaltation was in part a sense of taking a terrible plunge into the depths of fate. Germany was afraid of Russia and afraid of England, and that fear had to be overcome, because the presence of the fear itself was a matter of life or death. But the exaltation did not merely succeed the fear. It contained it. And why should Germany, even with all her preparedness and her resources not be afraid? An inherited fear is not so easily exorcised. Germany arrayed against all Russia and all the British Empire, Germany no larger than our Texas experienced a state of exaltation, overcoming fear. But it required something more than courage to overcome the fear; and that other element was mysticism. To the sense of throwing all into the hands of fate which, by all physical signs must be adverse, was added, as a compensating element, Germany's mystical belief in her security as a chosen nation. Fear, by its intensity and depth may, like physical pain, become ecstatic and thus be overcome.

Hatred

Hatred must be considered both as a cause of war, and as an element in the war moods. Many authors have called hatred one of the deepest roots of war. This hatred between nations even Freud says is mysterious. But Pfister, referring to Adler's theory, says that war must be understood precisely as we understand enmity among individuals. A sense of inferiority is insulted, and thus aggressive feelings are aroused. The nation, like the individual, is spurred on to make good its claim to greatness. It is a feeling of jealousy based upon a sense of inferiority that causes hatred. O'Ryan and Anderson (5), military writers, say there are two causes of war: those based upon an assumed necessity, and those based upon hatred. Nusbaum (86) also finds two causes of war, the expansion impulse and the egoism of species, which leads to long enmities.

History shows that we must accept hatred as an underlying cause of war. The reaction of deep anger which may be aroused by a variety of situations that arise among nations, especially when it is, so to speak, an outbreak of a long continued hatred, is a proximate cause of wars. Hatred, the reaction of anger prolonged into a mood, differs as national or group emotion from the anger of the individual in part by being subject strongly to group suggestion, and in part because in the group consciousness there is only rarely a means of expression, on the part of the individuals of the group, of the feelings of hatred. Enemies are far away and inaccessible. Therefore hatred may become deep and chronic.

Hatred between nations is usually based upon a long series of reprisals and a history of invasions. These invasions are primarily physical invasions, but later invasions in the sphere of invisible values, offenses to honor and the like are added. These ideal values come to be regarded as more vital than material values. Hatred between groups becomes chronic and often seems to be groundless because the values concerned have thus become intangible. The chronic moods of hatred and dislike become explosive forces, ready to be excited to action whenever any difference arises. Veblen (97) says wars never occur except when questions of honor are involved, which is of course equivalent to saying that the reaction of anger is always required as an immediate cause of war. Veblen maintains also that emulation is always involved in the patriotic spirit, that patriotism always contains the idea of the defeat of an opponent, and is based upon collective malevolence. The range of these occasions of crisis is so great, and the feelings of hatred so persistent and volatile, that the mechanism for the production of war is always present. These causes range all the way from violation of property to offense to the most abstract ideas of national etiquette. Violation of international law, of moral principles, we see now, may have very far-reaching effects as infringing the sphere of honor of nations not directly concerned, since the prestige of all nations as participants in creating law and becoming upholders of it is affected.

If hatred and its crises are causes of war, they do not fit into the moods in which warfare is generally conducted. Hatred belongs to the periods of peace and of strained relations, when the cause of war is present, but the means of retaliation are not at hand or not in action. The prevalence and persistence of hatred in war is a sign of imperfect morale. Hatred cannot remain in the war mood of a nation acting with full confidence in its powers. Hatred always implies inferiority or impotent superiority. Dide (20) says that the spirit of hatred does not fit into the soldier's life. It goes with the desire for revenge and is strongest among those who stay at home and can do nothing. Hatred is a phase of apprehension. Hatred is a product of the fear that cannot be taken up into the optimistic moods, and thus be transformed. It remains as a foreign body and an inhibition. It arises when obstacles appear to be too great, when there are reverses, and the enemy shows signs of being able to maintain a long and stubborn resistance, or flaunts again the original cause of the disagreement. Scheler (77) says that revenge, which is a form of hate, is not a justifiable war motive. We should say also that it is not a normal war mood, that it has no sustaining force, but causes a rapid expenditure of energy which may be effectual in brief actions, but is even there wasteful and interferes with judgment and efficiency. Morale based upon hatred is insecure.

Hatred must have been a very early factor in the relations of groups to one another, and presumably we should need to go back to animal life and study antipathies there in order fully to understand the nature of racial and national antagonisms, some of which may be based upon physiological traits and primitive æsthetic qualities. The very fact of the existence of groups, segregated and well bound together for the purposes of offense and defense implies already a strong contrast of feeling between that of individuals of the group toward one another and that directed toward the outsider. This contrast developed not merely as a reaction, but as a necessity, for groups in the beginning must have had to contend against their own feeble social cohesion, and existed only by reason of strong emotions of fear and anger felt toward the stranger. Hatred toward all outside the group must at one stage have been highly useful as a means of cementing the bonds of the group and maintaining the necessary attitude of defense, at a time when all outsiders were likely to be dangerous. Feelings of friendliness toward strangers were dangerous to the life of the group, and so hatred possessed survival value.

The main root of group antipathy is in all probability fear. Hatred is an aspect of the aggressive defensive toward the stranger. Hatred is a part of the aggressive reaction. As an expression of ferocity toward all who are not known to be friendly, it belongs to the first line of defense. Hatred is likely to be strong in the female because the attitude of the female is universally defensive.

In the beginning, as MacCurdy (37) says, the contrasts between groups were sharp, and these definitely separated groups must have felt toward one another not only antagonism but a sense of being different in kind. Intensity of feelings of opposition tends to magnify small differences into specific differences. This sense of specific difference is never lost, not even in the consciousness of enlightened nations in regard to one another, and we may see it to-day displayed as a mystic belief, on the part of many peoples, in their own superiority. Nations are always outsiders to one another, and the sense of strangeness perennially sustains defensive attitudes and moods of hatred. The friendship of nations can never be very secure, because the old idea of difference of kind is never quite abandoned. Some degree of enmity seems always to be felt toward the foreigner; that is, toward all who are not interested in the protective functions of the group. MacCurdy thinks the intensity of suspicion and hatred of peoples toward one another belongs to the pathological field, and that one expression of this is the peculiarity of the mental processes by which nations always justify their own cause in war. This, however, is perhaps an exaggeration, since we can trace these states of mind in all the history of the race.