Some see in war a recrudescence of the instinct of combat, and indeed think of war as mainly such a return to primitive instinct. The life of peace represses this motive too much, they think. Life is too organized and cooeperative and the individual craves release from it. The general objections to such an interpretation of war we have already stated. We think rather of certain specific movements as avenues of approach to highly complex states of ecstasy, and of these states of ecstasy as representing or containing the real craving for war, so far as there is one. The war mood exploits these movements and gives room for instincts to display themselves, and these instincts, in their expression, are pleasure-toned because they are archaic and have once been well organized and habitual forms of activity having practical objects. But to say that men have a profound but concealed desire to kill one another, that the fighting impulse remains intact in some original animal form, is a travesty upon human nature. It is precisely because in war killing is depersonalized, so to speak, that it is a moral duty and is performed under conditions in which there is a summation of many strong motives leading to the act that, as we see it, men find joy in battle. The instinct of attack, or the hunting instinct that is involved in this activity, can become pleasure-toned only because of the presence of other motives, and because the object is dehumanized for the time. Otherwise we should expect all soldiers, once having their aggressive instincts aroused in battle, to become dangerous to the community. That there is, however, a residue of pure love of physical combat and a survival of the instinctive movements of combat is shown in play, although here too the motives are mixed. The desire to fight, to kill, to hunt are still present but for the most part are sublimated in adult life into desire for competition in general, love of danger, and the hunting and gambling impulse. But we can here and there in human conduct see certain roots of pure instincts having definite cooerdinated reactions. These undoubtedly do play a part, but probably a very small part in the present moods of war. So far as they remain purely instinctive their place as a general motive of war seems negligible. It is a question, in fact, whether even in the state of savagery any pure instinct for killing ever played a considerable part. There were already practical motives, motives of fear and anger, and presumably also complex states of pleasure connected with beliefs, customs and ceremonies as well as with battle, so that even then men cannot be said to have acted upon anything like purely instinctive impulses.