The Führer wanted to advance on the Soviet Union in a broad front—in full alliance with Warsaw. But the Poles declined.
Because of the recent centenary, debates over the origins of World War I rage with renewed vigor. By contrast, the origins of World War II seem ever more settled and uncontroversial. Adolf Hitler, so the conventional narrative runs, attacked Poland as the first step in the capture of lands to the east—thereby seizing the Lebensraum, or living space, that Germany supposedly required. He paused to neutralize France and Britain before moving on to an assault on the Soviet Union that was, in great part, ideologically motivated. Rolf-Dieter Müller’s refreshing new look at the events of 1939, “Enemy in the East,” does not challenge Hitler’s primary responsibility, to be sure, but it does compel us to look again at the whole origins story.
Mr. Müller, an accomplished German military historian, is the first specialist to explain Germany’s strategic planning in 1938-39 for a larger audience.