Prussian field marshal Count Helmuth von Moltke, who wrote, “The material and moral consequences of every major battle are so far-reaching that they usually bring about a completely altered situation, a new basis for the adoption of new measures. One cannot be at all sure that any operational plan will survive the first encounter with the main body of the enemy. Only a layman could suppose that the development of a campaign represents the strict application of a prior concept that has been worked out in every detail and followed through to the very end.”
