You can understand that if, in the analysis of the Corps engaged on both sides, there are all these points of importance, the study of the position itself, of the roads, of the railways which it commands, of the lines of communication which it protects, is of the very highest. One must study what I may call the whole geographical context,” he added with a laugh. And indeed he was so delighted with this expression that, every time he employed it, even months afterwards, it was always accompanied by the same laugh. “While the operation is being prepared by one of the belligerents, if you read that one of his patrols has been wiped out in the neighbourhood of the position by the other belligerent, one of the conclusions which you are entitled to draw is that one side was attempting to reconnoitre the defensive works with which the other intended to resist his attack. An exceptional burst of activity at a given point may indicate the desire to capture that point, but equally well the desire to hold the enemy in check there, not to retaliate at the point at which he has attacked you; or it may indeed be only a feint, intended to cover by an increased activity the relief of troops in that sector.