"Nothing depends as much on economic conditions as the army and navy. Armament, composition, organization, tactics and strategy depend primarily on the stage of production achieved at the moment and on the means of communication. Not the "free creativity of reason" of brilliant commanders acted here in a revolutionary way, but the invention of the best weapons and the change of living soldier material. The influence of brilliant commanders is at best limited by the fact that they adapt the nature of the struggle to new weapons and new fighters...