<span><span><span>In a new approach to a vexing problem in modern philosophy, William H. F. Altman shows that Heidegger’s decision to join the Nazis in 1933 can only be un-derstood in the context of his complicated relationship with the Great War. By combining philosophy and biography with political and intellectual history, Altman shows that Heidegger’s 1927 masterpiece is a Funeral Oration that con-tributed to transforming “the War to end war” into “the First World War.” </span></span><br /></span>