Certain consequences follow from this state of the case. Technology and industrial experience, in large volume and at a high proficiency, are indispensable to the conduct of war on the modern plan, as well as a large, efficient and up-to-date industrial community and industrial plant to supply the necessary material of this warfare. At the same time the discipline of the campaign, as it impinges on the rank and file as well as on the very numerous body of officers and technicians, is not at cross purposes with the ordinary industrial employments of peace, or not in the same degree as has been the case in the past, even in the recent past. The experience of the campaign does not greatly unfit the men who survive for industrial uses; nor does it come in as a sheer interruption of their industrial training, or break the continuity of that range of habits of thought which modern industry of the technological order induces; not in the same degree as was the case under the conditions of war as carried on in the nineteenth century. The cultural, and particularly the technological, incidence of this modern warfare should evidently be appreciably different from what has been experienced in the past, and from what this past experience has induced students of these matters to look for among the psychological effects of warlike experience. It remains true that the discipline of the campaign, however impersonal it may tend to become, still inculcates personal subordination and unquestioning obedience; and yet the modern tactics and methods of fighting bear somewhat more on the individual's initiative, discretion, sagacity and self-possession than once would have been true. Doubtless the men who come out of this great war, the common men, will bring home an accentuated and acrimonious patriotism, a venomous hatred of the enemies whom they have missed killing; but it may reasonably be doubted if they come away with a correspondingly heightened admiration and affection for their betters who have failed to make good as foremen in charge of this teamwork in killing. The years of the war have been trying to the reputation of officials and officers, who have had to meet uncharted exigencies with not much better chance of guessing the way through than their subalterns have had.