In this book,I have tried to explain what the war was about; particularly, to resolve the paradox that men wear passionately engaged in the war and hated it at the same time.Each country fought ostensibly to defend itself yet sought also to conquer and to make great gains. The statesmen were overwhelmed by the magnitude of events.Photographs take us into the trenches and the munitions factories.We see again the devastated countryside and the queues for food.Here are the men who fought,suffered,and died ; the human beings behind the ringing phrases.Thanks to the camera, we can relieve the relies of First World War, and not mearly read about it.There were thousands of photographs from which to make a selection.We have thrown out ten for every one which we put it.