Not only had he that immense superiority in the quality of his troops which must be still insisted upon, but numerically also he was three to one when, on the 28th of September, at dawn, he crossed the Sambre above and below Maubeuge, and by noon of that day had contained the French army in that neighbourhood within the lines of the fortress. The situation was critical in the extreme: Maubeuge was ill prepared to stand siege; it was hardly provisioned; its garrison was of varied and, on the whole, of bad quality. In mere victuals it could stand out for but a few days, and, worst of all, it had behind it the continued example of necessary and fatal surrenders which had marked the whole summer. The orders of the Committee of Public Safety to its commander were terse: “Your head shall answer for Maubeuge.” After the receipt of that message no more came through the lines. The reader, if he be unaccustomed to military history, does well to note that in every action and in every campaign there is some one factor of position or of arms or of time which explains the result. Each has a pivot or hinge, as it were, upon which the whole turns. It was now upon Maubeuge that the revolutionary war thus depended. At risk of oversimplifying a complex story, I would lay this down as the prime condition for the understanding of the early revolutionary wars: had Maubeuge fallen, the road to Paris lay open and the trick was done[7]--and here we must consider again the effect in the field of Carnot’s genius. In the first place, he had provided numbers not on paper, but in reality; the Committee, through a decree of the Assembly, had despotically “requisitioned” men, animals, vehicles and supplies. The levy was a reality. Mere numbers then raw, but increasing, had begun to pour into the north-east. It was they that had told at Hoondschoote, it was they that were to tell in front of Maubeuge.