"Consequences, of course, cannot be foreseen. Experience can, by contrast, all too easily be projected into the future. The experience of the early warriors of 1914–18 – the probability of wounds or death, and circumstances of squalor and misery – swiftly acquired inevitability. There is mystery in that also. How did the anonymous millions, indistinguishably drab, undifferentially deprived of any scrap of the glories that by tradition made the life of the man-at-arms tolerable, find the resolution to sustain the struggle and to believe in its purpose? That they did is one of the undeniabilities of the Great War. Comradeship flourished in the earthwork cities of the Western and Eastern Fronts, bound strangers into the closest brotherhood, elevated loyalties created within the ethos of temporary regimentality to the status of life-and-death blood ties. Man whom the trenches cast into intimacy entered into bonds of mutual dependency and sacrifice of self stronger than any of the friendships made in peace and better times. That is the ultimate mystery of the First World War. If we could understand its loves as well as its hates, we would be nearer understanding the mysteries of human life."