A German attack through Belgium had been much and long discussed. If few would have said before the event, as the German Chancellor and Foreign Secretary pleaded immediately afterward, that it was “a question of life and death for the Empire,” “a step absolutely required,” it was at least more than probable; and we have Marshal Joffre’s word for it that the contingency was contemplated by the French Staff.[14] But two doubts remained, even in vigilant minds. Would the invasion by the north be large or small, and would it be more or less extensive, proceeding only by Belgian Luxembourg and the Meuse valley, or also by a more daring sweep across the Flanders plain into the valley of the Oise? Moltke had advocated a march to the North Sea coast, and a descent by the Channel ports, through the _trouée_ of the Oise, upon Paris, turning not merely the principal line, but the whole system, of the French fortresses. Bernhardi had toyed with the idea of an even more extensive movement, violating Dutch territory, but seemed at last to favour the more limited project, “the army of the right wing marching by the line Trêves–Stenay, crossing Luxembourg and southern Belgium.” In fact, neither of these ways was taken. The invasion pursued a middle route, Holland being avoided, the descent upon the coast deferred, and armies thrown across both the Flanders plain and the difficult country of the Belgian Ardennes. Notwithstanding the advertisement of the Kaiser’s chief Ministers in their famous pleas in justification, on the first day of the war, the French Staff do not seem to have anticipated anything more in the north than an attack by Luxembourg and the Ardennes, or to have altered their dispositions to meet it until the middle of August. We do not yet fully know what are the reasons for the arrest of the German offensive after the effective reduction of Liège, until August 19. Instead of six days, with, perhaps, three more for re-concentration, the German right wing took sixteen days in crossing Belgium. As this week of Belgium’s vicarious sacrifice saved France, it cannot be supposed to have been a voluntary delay made simply for the purpose of deceiving the Allies. It had that effect, however. Thwarted at Liège, the German command did everything it could to conceal the true nature of the blow it was about to deliver——by terrorising the population and occupying the mind of the world with its atrocities, by the ubiquitous activity of its cavalry screen, by avoiding Western Flanders and the coast, and by holding up the advance of its first three armies behind the line of the Gette and the Meuse till everything was ready. The Allies altogether failed to pierce the veil of mystery covering the final concentration. They were deceived (1) as to the main direction of the coming onslaught, (2) as to its speed, (3) as to its power in men and armament. General Sordet’s cavalry got little information during their Belgian wanderings; the