Grouchy had, in fact, altogether failed to intercept them. Napoleon had made up his mind that after Ligny the Prussians would retreat toward Namur, and sent Grouchy in pursuit of them along that road. That officer had gone many miles before he discovered the route they had really taken, and only came up with the rear of their column at Wavre on the morning of Waterloo. Blucher left one division to oppose him, and marched with the other three to join Wellington.
It was not until nearly ten o'clock that the French attack began; then a column moved down from the heights of La Belle Alliance against the wood of Hougoumont, and as it approached the leading companies broke up into skirmishing order. As these arrived within musketry range a scattering fire broke out from the hedges in front of the wood, and the battle of Waterloo had begun.
Soon from the high ground behind Hougoumont the batteries of artillery opened fire on the French column. Its skirmishers advanced bravely, and constantly reinforced, drove back the Hanoverian and Nassau riflemen in front of the wood. Then Bull's battery of howitzers opened with shell upon them; and so well were these served that the French skirmishers fell back, hotly pressed by the First and Second brigade of guards issuing from the chateau. The roar of cannon speedily extended along both crests; the British aiming at the French columns, the French, who could see no foes with the exception of the lines of skirmishers, firing upon the British batteries. The French therefore suffered severely, while the allies, sheltered behind the crest, were only exposed to the fire of the shot which grazed the ground in front, and then came plunging in among them.
Prince Jerome, who commanded on Napoleon's left, sent strong columns of support to his skirmishers acting against the right of the wood of Hougoumont, while Foy's division moved to attack it in front. In spite of a terrific fire of artillery poured upon them these brave troops moved on, supported by the concentrated fire of their powerful artillery against the British position. The light companies of the guards, after an obstinate resistance, were forced back through the wood. The French pushed on through the trees until they reached the hedge, which seemed to them to be the only defense of the buildings. But thirty yards in the rear was the orchard wall, flanked on the right by the low brick terraces of the garden. The whole of these had been carefully loopholed, and so terrible a storm of fire opened upon the French that they recoiled and sought shelter among the trees and ditches in the rear.
Jerome, seeing that his skirmishers had won the wood, and knowing nothing of the formidable defenses that arrested their advance, poured fresh masses of men down to their assistance. Although they suffered terribly from the British artillery fire, they gathered in the wood in such numbers that they gradually drove back the defenders into the buildings and yard, and completely surrounded the chateau. The defenders had not even time properly to barricade the gate. This was burst open and dense masses rushed in. The guards met them with the bayonet, and after fierce fighting drove thorn out and closed the gate again, and with their musketry fire compelled them to fall back from the buildings. Some of the French, however, advanced higher up the slope, and opened fire upon one of the batteries with such effect that it had to withdraw. Four fresh companies of the guards advanced against them, cleared them away, and reinforced the defenders of the chateau.
A desperate fight raged round the buildings, and one of the enemy's shells falling upon the chateau set it on fire. But the defense still continued, until Lord Saltoun, repulsing a desperate attack, and reinforced by two companies which came down the hill to his assistance, drove the enemy back and recaptured the orchard. This desperate conflict had lasted for three hours.
While it was going on Ney led twenty thousand men against the center and left of the British position, advancing as usual in heavy column. Just as they were setting out at one o'clock Napoleon discovered the Prussians advancing.
He sent off a despatch to Grouchy ordering him to move straight upon the field of battle; but that general did not receive it until seven in the evening, when the fight was nearly over. It was just two when the columns poured down the hill, their attack heralded by a terrific fire upon the British line opposed to them. The slaughter among Picton's division was great; but although the Dutch and Hanoverians were shaken by the iron hail, they stood their ground. When the columns reached the dip of the valley and began to ascend the slopes toward the British division they threw out clouds of skirmishers and between these and the light troops of the allies firing at once began, and increased in volume as the French neared the advanced posts of La Haye Sainte, Papelotte, and La Haye.
The division of Durette drove out the Nassau troops from Papelotte; but reinforcements arrived from the British line, and the French in turn were expelled. The other three French columns advanced steadily, with thirty light guns in the intervals between them. Donzelat's brigade attacked La Haye Sainte, and, in spite of a gallant resistance by the Germans, made its way into the orchard and surrounded the inclosures. Another brigade, pushing along on the other side of the Charleroi road, were met by the fire of two companies of the rifle brigade who occupied a sandpit there, and by their heavy and accurate fire checked the French advance. The other two divisions moved straight against that part of the crest held by Picton's division.
The men of the Dutch-Belgian brigade, as soon as fire was opened upon them, lost all order and took to their heels, amid the yells and execrations of the brigades of Kempt and Pack behind them, and it was with difficulty that the British soldiers were kept from firing into the fugitives. The Dutch artillery behind them tried to arrest the mob; but nothing could stop them—they fairly ran over guns, men, and horses, rushed down the valley and through the village of Mount St. Jean, and were not seen again in the field during the rest of the day. Picton's division was now left alone to bear the brunt of the French attack. The battle at Quatre Bras had terribly thinned its ranks, and the two brigades together did not muster more than three thousand men. Picton formed the whole in line, and prepared to resist the charge of thirteen thousand infantry, beside heavy masses of cavalry, who were pressing forward, having in spite of a stout resistance driven in the riflemen from the sandpit and the road above it. As the columns neared the British line the fire from the French batteries suddenly ceased, their own troops now serving as a screen to the British. The heads of the columns halted and began to deploy into line; Picton seized the moment, and shouted "A volley, and then charge!"