Graf von Helmuth Moltke, The Franco-German War of 1870-71
“ But beyond everything the plan of campaign was based on the resolve to attack the enemy at once, wherever found, and keep the German forces always so compact that this could be done with the advantage of superior numbers. The specific dispositions for the accomplishment of those objects were left to be adopted on the spot; the advance to the frontier was alone pre-arranged in every detail.It is a delusion to imagine that a plan of campaign can be laid down far ahead and fulfilled with exactitude. The first collision with the enemy creates a new situation in accordance with its result. ”
