Hitler claimed that his years as a soldier in the First World War were the most formative years of his life. However, for the six decades since his death in the ruins of Berlin, Hitler's time as a soldier on the Western Front has, remarkably, remained a blank spot. Until now, all that we knew about Hitler's life in these years and the regiment in which he served came from his own account in Mein Kampf and the equally mythical accounts of his comrades.