Blucher now advanced at the head of his soldiers and made a vigorous attempt upon the three St. Amands; but with only partial success for a time. At length, by a series of skillful attacks and manoeuvres, the French became masters of these three points, but had not been able to cross the sinuous stream of Ligny. It was now 5:30 o'clock and Napoleon was directing the Imperial Guard upon Ligny in support of the advantages already gained by Count Gérard at the head of 5,000 men, at St. Amand, when he was informed that an army of 30,000 was advancing upon Fleurus. The Emperor suspended the movement of his Guard in order to meet this new force; but the alarm was unfounded. It proved to be the first corps,—Count d'Erlon's,—which formed part of Ney's division, at last complying with Napoleon's repeated orders, and had come up to take the enemy in the rear:—their unexpected appearance had occasioned the loss of two hours.
The Old Guard now resumed its suspended movements upon Ligny: the ravine was passed by General Pecheux, at the head of his division, supported by the infantry, cavalry, artillery and Milhaud's cuirassiers. The reserves of the Prussians were driven back with the bayonet, and the centre of the line broken and routed. A bloody conflict ensued in which the French were victorious. The slaughter among the Prussians, was most remarkable. They, however, divided into two parts, effected a retreat, favored by the night and by the failure of that attack in the rear which Ney had been so expressly ordered to make by a detachment from his force. Their loss amounted to the prodigious number of 18,000 men, killed, wounded or prisoners; forty pieces of cannon and eight stands of colors, while the French loss was between 8,000 and 9,000.
For five hours, two hundred pieces of ordnance deluged the field with slaughter, blood and death, during which period the French and Prussians, alternately vanquished and victors, disputed that ensanguined post hand to hand and foot to foot, so that no less than seven times in succession Ligny was taken and lost.
The Emperor had repeatedly sent to Ney saying "that the destiny of France rested in his hands" but the veteran marshal failed to appreciate the importance of the orders and did not act promptly.
Many of the Prussian generals were killed or wounded; and Blucher himself was overthrown, man and horse, by a charge of cuirassiers, and galloped over by friends and foes. Night was coming on and the marshal, who was much battered and bruised, effected his escape. He joined a body of his troops, directed the retreat upon Wavres, and continued to mask his movements so skilfully, that Napoleon knew not until noon on the 17th what way he had taken.
The total loss of the French amounted to no more than nine thousand, killed or wounded—the extraordinary disproportion being occasioned by the more skillful disposition of the French troops, whereby all their shots took effect, while more than half of those of the enemy were wasted.
On the same day as the battle of Ligny,—June 16th,—was also fought the battle of Quatre-Bras, and at about the same time. Ney, with 45,000 men, began an attack on the position of Wellington at Quatre-Bras. At this point the French were posted among growing corn as high as the tallest man's shoulder, and which enabled them to draw up a strong body of cuirassiers close to the English, and yet entirely out of their view. The 49th and 42d regiments of Highlanders were thus taken by surprise, and the latter would have been destroyed but for the coming up of the former. The 42d, formed into a square, was repeatedly broken, and as often recovered, though with terrible loss of life, for out of 800 that went into action, only ninety-six privates and four officers remained unhurt.
The pressing orders of Napoleon not allowing the marshal time for reflection, and doubtless anxious to repair the precious time lost in which he might have taken possession of Quatre-Bras, he did not sufficiently reconnoitre but entered into the contest without being wholly prepared. The first successful attack was soon suspended by the arrival of fresh reinforcements, led by the Duke of Wellington, and the shining bravery of the Scotch, Belgians and the Prince of Orange suspended the success of the French. They were repulsed by a shower of bullets from the British infantry added to a battery of two guns which strewed the causeway with men and horses.
Ney was desirous of making the first corps, which he had left in the rear, advance; but Napoleon had dispatched positive orders to Count d'Erlon, at the head of that body, to join him, for which purpose the latter had commenced his march. Ney, when made acquainted with this fact, was stationed amidst a cross-fire from the enemies' batteries. "Do you see those bullets?" cried the marshal, his brow clouded by despair; "would that they would all pass through my body!" and he instantly sent General Delcambre with all speed after Count d'Erlon, directing that whatsoever might have been his orders, although received from the Emperor himself, he must return. This he did, but when he arrived in the evening, Ney, dispirited by the checks already received, and dissatisfied with himself and others, had discontinued the engagement. D'Erlon had spent the day in useless marches, his valor wasted by a fatality over which he had no control. Between 5 and 6 o'clock General Delcambre had overtaken the first corps on its march to Bry and brought it back towards Quatre-Bras!
Night found the English, after a severe and bloody day, in possession of Quatre-Bras, the French being obliged to retreat. The gallant Duke of Brunswick, fighting in front of the line, fell almost in the beginning of the battle. The killed and wounded on the side of the French was 4,000 and the Allies' loss was nearly 6,000, in consequence of their having scarcely any artillery. As at Ligny, little quarter was either asked or given, there being much hatred between the French and Prussians. The French were next driven out from the Bois de Bossu by the Belgians, and the English divisions of Alten, Halket, Maitland, Cooke, and Byng, successively arrived.