NATIONAL BESTSELLER - The definitive account of the Great War from one of our most eminent military historians. 'Elegantly written, clear, detailed, and omniscient.... Keegan is...perhaps the best military historian of our day.' --The New York Times Book Review The First World War created the modern world. A conflict of unprecedented ferocity, it abruptly ended the relative peace and prosperity of the Victorian era, unleashing such demons of the twentieth century as mechanized warfare and mass death. It also helped to usher in the ideas that have shaped our times--modernism in the arts, new approaches to psychology and medicine, radical thoughts about economics and society--and in so doing shattered the faith in rationalism and liberalism that had prevailed in Europe since the Enlightenment. The First World War probes the mystery of how a civilization at the height of its achievement could have propelled itself into such a ruinous conflict and takes us behind the scenes of the