The blitzkrieg is one of the best-known examples of a “military technical revolution”—and one of the most misunderstood by the general public. It is commonly assumed, based on the ease with which German armies overran Poland, Norway, Denmark, the Low Countries, and France, that they possessed a big technological and numerical edge over their adversaries. Nothing could be further from the truth; Hitler actually fielded fewer tanks and aircraft than the British and French, and the quality of the Allied weapons was in many cases higher than the Germans’. The German edge lay in their superior ability to coordinate their forces, and in their high quality of leadership, training, and morale. They figured out how to make the best use of the technology of the day; the Allies did not.