If the question merely concerned the past, if it were only a matter of proving that this or that 'School of thought' was right, this re-examination of arguments put forward before the War would be a sterile business enough. But it concerns the present and the future; bears directly and pertinently upon the reasons which have led us into the existing chaos; and the means by which we might hope to emerge. As much to-day as before the War (and far more obviously) is it true that upon the reply to the questions raised in this discussion depends the continuance of our civilisation. Our society is still racked by a fierce struggle for political power, our populations still demand the method of coercion, still refuse to face the facts of interdependence, still insist clamorously upon a policy which denies those facts. The propositions we are here discussing were not, it is well to recall, merely to the effect that 'war does not pay,' but that the ideas and impulses out of which it grows, and which underlay--and still underlie--European politics, give us an unworkable society; and that unless they can be corrected they will increasingly involve social collapse and disintegration. That conclusion was opposed, as we have seen, on two main grounds. One was that the desire for conquest and extension of territory did not enter appreciably into the causes of war, 'since no one really believed that victory could advantage them.' The other ground of objection, in contradistinction, was that the economic advantages of conquest or military predominance were so great and so obvious that to deny them was mere paradox-mongering. The validity of both criticisms has been very thoroughly tested in the period that has followed the Armistice. Whether it be true or not that the competition for territory, the belief that predominant power could be turned to economic account, entered into the causes of the War, that competition and belief have certainly entered into the settlement and must be reckoned among the causes of the next war. The proposition that the economic advantages of conquest and coercion are illusory is hardly to-day a paradox, however much policy may still ignore the facts.