Napoleon himself has found fault with Wellington for not having retreated further, so as to complete a junction of his army with Blucher's before he risked a general engagement. [See Montholon's Memoirs, vol. iv. p. 44.] But, as we have seen, the Duke justly considered it important to protect Brussels. He had reason to expect that his army could singly resist the French at Waterloo until the Prussians came up; and that, on the Prussians joining, there would be a sufficient force united under himself and Blucher for completely overwhelming the enemy. And while Napoleon thus censures his great adversary, he involuntarily bears the highest possible testimony to the military character of the English, and proves decisively of what paramount importance was the battle to which he challenged his fearless opponent. Napoleon asks, "IF THE ENGLISH ARMY HAD BEEN BEATEN AT WATERLOO, WHAT WOULD HAVE BEEN THE USE OF THOSE NUMEROUS BODIES OF TROOPS, OF PRUSSIANS, AUSTRIANS, GERMANS, AND SPANIARDS, WHICH WERE ADVANCING BY FORCED MARCHES TO THE RHINE, THE ALPS, AND THE PYRENEES?" [Ibid.]
The strength of the army under the Duke of Wellington at Waterloo was 49,608 infantry, 12,402 cavalry, and 5,645 artillerymen with 156 guns. [Siborne, vol. i. p. 376.] But of this total of 67,655 men, scarcely 24,000 were British, a circumstance of very serious importance, if Napoleon's own estimate of the relative value of troops of different nations is to be taken. In the Emperor's own words, speaking of this campaign, "A French soldier would not be equal to more than one English soldier, but he would not be afraid to meet two Dutchmen, Prussians, or soldiers of the Confederation." [Montholon's Memoirs, vol. iv. p. 41.] There were about 6,000 men of the old German Legion with the Duke; these were veteran troops, and of excellent quality. Of the rest of the army the Hanoverians and Brunswickers proved themselves deserving of confidence and praise. But the Nassauers, Dutch, and Belgians were almost worthless; and not a few of them were justly suspected of a strong wish to fight, if they fought at all, under the French eagles rather than against them.
Napoleon's army at Waterloo consisted of 48,950 infantry, 15,765 cavalry, 7,232 artillerymen, being a total of 71,947 men, and 246 guns. [See Siborne, UT SUPRA.] They were the flower of the national forces of France; and of all the numerous gallant armies which that martial land has poured forth, never was there one braver, or better disciplined, or better led, than the host that took up its position at Waterloo on the morning of the 18th of June, 1815.
Perhaps those who have not seen the field of battle at Waterloo, or the admirable model of the ground, and of the conflicting armies, which was executed by Captain Siborne, may gain a generally accurate idea of the localities, by picturing to themselves a valley between two and three miles long, of various breadths at different points, but generally not exceeding half a mile. On each side of the valley there is a winding chain of low hills running somewhat parallel, with each other. The declivity from each of these ranges of hills to the intervening valley is gentle but not uniform, the undulations of the ground being frequent and considerable. The English army was posted on the northern, and the French army occupied the southern ridge. The artillery of each side thundered at the other from their respective heights throughout the day, and the charges of horse and foot were made across the valley that has been described. The village of Mont St. Jean is situate a little behind the centre of the northern chain of hills, and the village of La Belle Alliance is close behind the centre of the southern ridge. The high road from Charleroi to Brussels (a broad paved causeway) runs through both these villages, and bisects therefore both the English and the French positions. The line of this road was the line of Napoleon's intended advance on Brussels.
There are some other local particulars connected with the situation of each army, which it is necessary to bear in mind. The strength of the British position did not consist merely in the occupation of a ridge of high ground. A village and ravine, called Merk Braine, on the Duke of Wellington's extreme right, secured his flank from being turned on that side; and on his extreme left, two little hamlets called La Haye and Papelotte, gave a similar, though a slighter, protection. Behind the whole British position is the extensive forest of Soignies. As no attempt was made by the French to turn either of the English flanks, and the battle was a day of straightforward fighting, it is chiefly important to ascertain what posts there were in front of the British line of hills, of which advantage could be taken either to repel or facilitate an attack; and it will be seen that there were two, and that each was of very great importance in the action. In front of the British right, that is to say, on the northern slope of the valley towards its western end, there stood an old-fashioned Flemish farm-house called Goumont, or Hougoumont, with out-buildings and a garden, and with a copse of beach trees of about two acres in extent round it. This was strongly garrisoned by the allied troops; and, while it was in their possession, it was difficult for the enemy to press on and force the British right wing. On the other hand, if the enemy could take it, it would be difficult for that wing to keep its ground on the heights, with a strong post held adversely in its immediate front, being one that; would give much shelter to the enemy's marksmen, and great facilities for the sudden concentration of attacking columns. Almost immediately in front of the British centre, and not so far down the slope as Hougoumont, there was another farm-house, of a smaller size, called La Haye Sainte, [Not to be confounded with the hamlet of La Haye at the extreme left of the British line.] which was also held by the British troops, and the occupation of which was found to be of very serious consequence.
With respect to the French position, the principal feature to be noticed is the village of Planchenoit, which lay a little in the rear of their right (I.E. on the eastern side), and which proved to be of great importance in aiding them to check the advance of the Prussians.
Napoleon, in his memoirs, and other French writers, have vehemently blamed the Duke for having given battle in such a position as that of Waterloo. They particularly object that the Duke fought without having the means of a retreat, if the attacks of his enemy had proved successful; and that the English army, if once broken, must have lost all its guns and MATERIEL in its flight through the Forest of Soignies, that lay in its rear. In answer to these censures, instead of merely referring to the event of the battle as proof of the correctness of the Duke's judgment, it is to be observed that many military critics of high authority, have considered the position of Waterloo to have been admirably adapted for the Duke's purpose of protecting Brussels by a battle; and that certainly the Duke's opinion in favour of it was not lightly or hastily formed. It is a remarkable fact (mentioned in the speech of Lord Bathurst when moving the vote of thanks to the Duke in the House of Lords), [Parliamentary Debates, vol. xxxi. p. 875.] that when the Duke of Wellington was passing through Belgium in the preceding summer of 1814, he particularly noticed the strength of the position of Waterloo, and made a minute of it at the time, stating to those who were with him, that if it ever should be his fate to fight a battle in that quarter for the protection of Brussels, he should endeavour to do so in that position. And with respect to the Forest of Soignies, which the French (and some few English) critics have thought calculated to prove so fatal to a retreating force, the Duke on the contrary believed it to be a post that might have proved of infinite value to his army in the event of his having been obliged to give way. The Forest of Soignies has no thicket or masses of close-growing trees. It consists of tall beeches, and is everywhere passable for men and horses. The artillery could have been withdrawn by the broad road which traverses it towards Brussels; and in the meanwhile a few regiments of resolute infantry could have held the forest and kept the pursuers in check. One of the best writers on the Waterloo campaign, Captain Pringle, [See the Appendix to the 8th volume of Scott's Life of Napoleon.] well observes that "every person, the least experienced in war, knows the extreme difficulty of forcing infantry from a wood which cannot be turned." The defence of the Bois de Bossu near Quatre Bras on the 16th of June had given a good proof of this; and the Duke of Wellington, when speaking in after years of the possible events that might have followed if he had been beaten back from the open field of Waterloo, pointed to the wood of Soignies as his secure rallying place, saying, "they never could have beaten us so, that we could not have held the wood against them." He was always confident that he could have made good that post until joined by the Prussians, upon whose co-operation he throughout depended. [See Lord Ellesmere's Life and Character of the Duke of Wellington, p. 40.]
As has been already mentioned, the Prussians, on the morning of the 18th, were at Wavre, which is about twelve miles to the east of the field of battle of Waterloo. The junction of Bulow's division had more than made up for the loss sustained at Ligny; and leaving Thielman with about seventeen thousand men to hold his ground, as he best could, against the attack which Grouchy was about to make on Wavre, Bulow and Blucher moved with the rest of the Prussians through St. Lambert upon Waterloo. It was calculated that they would be there by three o'clock; but the extremely difficult nature of the ground which they had to traverse, rendered worse by the torrents of rain that had just fallen, delayed them long on their twelve miles' march.
An army indeed, less animated by bitter hate against the enemy than was the Prussians, and under a less energetic chief than Blucher, would have failed altogether in effecting a passage through the swamps, into which the incessant rain had transformed the greater part of the ground through which it was necessary to move not only with columns of foot, but with cavalry and artillery. At one point of the march, on entering the defile of St. Lambert, the spirits of the Prussians almost gave way. Exhausted in the attempts to extricate and drag forward the heavy guns, the men began to murmur. Blucher came to the spot, and heard cries from the ranks of—"We cannot get on." "But you must get on," was the old Field-Marshal's answer. "I have pledged my word to Wellington, and you surely will not make me break it. Only exert yourselves for a few hours longer, and we are sure of victory." This appeal from old "Marshal Forwards," as the Prussian soldiers loved to call Blucher, had its wonted affect. The Prussians again moved forward, slowly, indeed, and with pain and toil; but still they moved forward. [See Siborne, vol. ii. p. 137.]
The French and British armies lay on the open field during the wet and stormy night of the 17th; and when the dawn of the memorable 18th of June broke, the rain was still descending heavily upon Waterloo. The rival nations rose from their dreary bivouacs, and began to form, each on the high ground which it occupied. Towards nine the weather grew clearer, and each army was able to watch the position and arrangements of the other on the opposite side of the valley.