Carnot, however, sufficiently knew the virtues as the vices of his novel troops, the troops of the great levy, stiffened with a proportion of regulars, to attempt an extraordinary thing. He marched eight thousand from his left and centre, over to his right during the night, and in the morning of the 16th his right, in front of the Austrian left at Wattignies had, by this conversion, become far the strongest point of the whole line. A dense mist had covered the end of this operation as the night had covered its inception, and that mist endured until nearly midday. The Austrians upon the heights had no hint of the conversion, and Wattignies was only held by three regiments. If they expected a renewed attack at all, they can only have expected it in the centre, or even upon the left where the French had suffered most the day before. Initiative in war is essentially a calculation of risk, and with high initiative the risk is high. What Carnot gambled upon (for Jourdan was against the experiment) when he moved those young men through the night, was the possibility of getting active work out of them after a day’s furious action, the forced marches of the preceding week and on top of it all a sleepless night of further marching. Most of the men who were prepared to charge on the French right as the day broadened and the mist lifted on that 16th of October, had been on foot for thirty hours. The charge was delivered, and was successful. The unexpected numbers thus concentrated under Wattignies carried that extreme position, held the height, and arrived, therefore, on the flank of the whole Austrian line, which, had not the effort of the aggressors exhausted them, would have been rolled up in its whole length. As it was, the Austrians retreated unmolested and in good order across the Sambre. The siege of Maubeuge was raised; and the next day the victorious French army entered the fortress. Thus was successfully passed the turning-point of the revolutionary wars.