During this day further bodies of British troops crossed the river. The forces already on the north side were heavily engaged. Towards nightfall the Germans attempted a counter-attack. It was beaten off after severe fighting. Three hours later, about ten o'clock at night, they again descended in force against the positions and villages held by the British troops. While the clefts and side valleys blazed with flashing fire of infantry, the valley of the Aisne was lit up for miles with the fluctuating and lurid flare from the heavy guns. Masses of German infantry tried to drive the British troops out of the villages they had seized. It was evidently hoped to prevail by weight of numbers. The onset fell back crippled by the losses sustained. By this time the fact was becoming plain that the battle was no mere rearguard action. The enemy had manifestly resolved to make a stand. To ascertain the character and strength of his disposition, Sir John French ordered a general advance. It was timed to begin at daybreak. The dawn broke amid rain and heavy mists, but this, if a disadvantage to the attack, was equally a disadvantage to the defence. One of the leading features of this offensive was what Sir John French has justly called the bold and decisive action of the 1st army corps, commanded by Sir Douglas Haig. From Bourg, the scene of the crossing on the aqueduct, there runs northward climbing to the summit of the ridge a road to the village of Cerny, about half-way along the Chemin des Dames. The distance from Bourg to Cerny is rather more than three miles. It is, however, a stiff climb. Two-thirds of the way up, where the road bends sharply to the left round a spur, is the village of Vendresse-et-Troyon. The capture of this place was one of the immediate objectives, and the troops told off to accomplish it were the 1st infantry brigade and the 25th artillery brigade, under General Bulfin.[23] At Cerny there is a slight dip on the level of the ridge. Vendresse is on the west slope of this side valley, and Troyon on the east slope just behind the spur. The Germans held in strong force both the spur and the houses on each slope. At Troyon they had fortified themselves in a factory. Few operations could be more ticklish than the seizure of such a place. From the spur the Germans came down in a counter-attack like a human avalanche. After stemming this rush by a withering fire the Northamptons were ordered to carry the spur at the point of the bayonet. They did it. As they were chasing the survivors of the counter-attack up the slope there suddenly appeared on the skyline a second mass of German infantry, the reserves supporting the counter-attacking column. In a matter of seconds, however, the fugitives and the Northamptons were on them. Their ranks broken, they also turned and fled in rout across the plateau.