By overruling his senior officers and achieving a string of stunning victories in the years leading up to World War II, Adolf Hitler came to be considered, and considered himself, a military genius. He masterminded the march into the Rhineland in 1936, the annexation of Austria two years later, the subsequent annexation and dismemberment of Czechoslovakia, and the invasion of Poland in 1939. Hitler’s seemingly unerring political, military, and diplomatic judgment fed a messianic conviction of his invincibility.
When mixed with dictatorial power and a growing propensity to react to strategic differences with towering rages, the result proved a fatal brew—one that had the ironic effect over time of turning Hitler into one of the Allies’ most effective weapons. At almost every point where an important decision was required, the Nazi leader could be counted on to make the one that inadvertently benefited the Allied cause, and helped to doom his own. A complete catalog of Hitler’s failures as a war chief could fill a thick volume; a dubious honor roll of the worst of them follows.