William Hyde Kelly

“ I have chosen this tail-end of the campaign because little is known about it; because it serves useful lessons even for to-day; because the operations leading up to the battle round Wavre are of great interest; and because a campaign full of mistakes should be studied as carefully as a campaign free from error. From history we obtain experience, and experience teaches us how to act for the future. We learn how great men of old time fought their battles and managed their retreats ”

“ To march boldly completely round the rear of the allied armies, liberate a few prisoners, and then march off in the opposite direction, would have been to waste the only formed body left of all Napoleon’s army. And what would Thielemann do in the meantime? There was now no hope of winning over Brussels or the Dutch-Belgians, otherwise there would have been some weight in Vandamme’s extraordinary proposal. But Grouchy counselled otherwise. ”

“ Even a perfectly-planned and well-executed attack by night, with all the signs pre-determined, and each movement marked beforehand, cannot be kept absolutely quiet; there is always a stumbling, a cry of pain from a sprained ankle or 157 broken nose, a curse from the darkness, often a rifle accidentally discharged; but in a retreat hastily decided on, how much greater will the noise be! The shouting of orders which cannot be conveyed by signs or signals on the spur of the moment, the noise of the heavy waggons, the yells of the drivers, and the cracking of whips! ”

“ After a long and fiercely-contested battle, both sides are exhausted; and there may be no fresh troops at hand to carry out the pursuit. There may be heavy rains, making the road impassable; there may be a lack of mounted troops. Most of Wellington’s victories in the Peninsular War were so dearly bought that his troops were far too exhausted themselves to think of pursuing the enemy. ”

“ Cavalry alone, however, will effect little, if the enemy takes to rear-guard positions; it must be supported or accompanied by artillery and infantry. It must be remembered that, of the two sides, the vanquished are the more exhausted, and the greater the enemy’s anxiety to draw his troops clear of pursuit, the closer that pursuit must be. The French cavalry at Ligny, except Milhaud’s Cuirassiers, had had little to do.
The proportion of cavalry to infantry in an army cannot be laid down by any hard-and-fast rule. ”

“ The allies in their march on Paris would ignore him, and, moving by a much more direct road, would reach the capital first. The triple line of fortresses across the line of advance of the enemy, were expected to bar his approach, but they were weakly garrisoned by ill-disciplined and raw troops, whose whole spirit was shaken by Napoleon’s great defeat.
So far-reaching is the effect of a defeat as great as Waterloo that armies, districts, even capitals, miles from the real theatre of war, possibly in other countries, seem to crumble to dust before the conqueror ”

“ And Gneisenau, who is credited with initiating the brilliant strategy of the retreat to Wavre, took care first of all to rally his men; for he must have feared a vigorous pursuit by the French, who, he supposed, would soon force Thielemann to withdraw.
The retreat of a defeated army in face of the enemy is one of the most difficult and delicate operations in war. The two chief causes of the success of the Prussian retreat from Ligny were the favourable darkness and Thielemann’s firm behaviour at Sombreffe. ”

“ Why did not Napoleon order him to attack Quatre-Bras at daybreak on the 16th? There is no satisfactory answer. It is inconceivable that Napoleon, than whom no general has ever been bolder and more decisive in his moves or quicker to take action at critical moments, should have neglected to spend the night of the 15th in bringing up the troops in rear—Lobau’s Corps, d’Erlon’s Corps, Gérard’s Corps. ”

“ To follow up his victory, to pursue the retreating force, and to leave no vestige of fighting power 73 in the vanquished, is the aim and object of every general who wins a battle. When the Prussians were defeated at Ligny, the advantage of vigorous pursuit with all the available cavalry and Lobau’s Corps would have been enormous. The whole aim of Napoleon’s strategy had been to crush the Prussians, and to prevent them from interfering with his attack on Wellington. He had found Blucher ready to fight at Ligny, and he had beaten him. ”

“ Negative information in war is very often as useful and important as positive; and Grouchy would have assisted Napoleon to form his ideas if he had reported that he had discovered no signs of a Prussian retreat on Namur. He should also have made some mention of Pajol’s detachment—such as “no news has been received from Pajol, who is on my right at St Denis, with a detachment of cavalry and infantry.” Again, had Grouchy only accounted for 30,000 Prussians, of the whole of Blucher’s army? ”

“ Now, a force in retreat does not require an equivalent force to pursue it. The moral advantages with the victor enable him to press vigorously with fewer troops. So the force detached 78 under Grouchy (33,600 men) was ample to follow up the Prussians, and to beat even the fresh Corps (Bulow’s) which Napoleon suspected in the vicinity of Gembloux. True, Grouchy’s force was required to do something more than follow up and beat Thielemann’s Corps, or Thielemann’s and Bulow’s combined: but what could be Napoleon’s object in keeping back any troops at Ligny? ”

“ Every hour of rest allowed to Thielemann meant that his troops would be able to march more rapidly when they took the road again. If Thielemann had seen a few squadrons threatening his retreat, a few showing themselves on his flanks, without knowing the real strength of the force overtaking him, it is not conceivable that he would have waited to be attacked by overwhelming numbers. ”

“ Inspired by one of his finest strategical conceptions, the Emperor resolved to break boldly into the very centre of the enemy’s cantonments, at the very point where the English and Prussians would probably concentrate. The road from Charleroi to Brussels forming the line of contact between the two armies, Napoleon, passing through Beaumont and Phillippeville, resolved, by this road, to fall like a thunderbolt on his foe.”2
Wellington’s troops were scattered in cantonments stretching over an arc from Oudenarde to Quatre-Bras. ”

“ Napoleon’s first instruction to Grouchy was to concentrate all his forces at Gembloux. To enable both Corps to arrive at Gembloux together, Gérard’s should have marched off first and taken the cross-country road from Sombreffe to the old Roman road, and thence along to Gembloux. Vandamme would then have had a clear road past Point-du-Jour, undisturbed by Gérard’s troops. As it was, Gérard’s men had to traverse a road already cut up by the Prussians and Vandamme’s Corps.
Excelmans had lost every opportunity. He should not have contented himself with watching the enemy ”

“ The scattered remnants of Napoleon’s army were fleeing along the roads from Charleroi 142 towards Avesnes, Laon, and Phillippeville. Grouchy therefore designed his retreat so as to bring his army clear of pursuit as quickly as possible, and to work his way towards the fragments which were with difficulty being collected round Laon by Soult, Reille, and others. He hoped to reach Paris before the allied armies, in time to organise a defence, or perhaps to effect a junction with the army of the Alps under Suchet and with Lecourbe. ”

“ As a rule, a flank march, being away from the general line of advance or retreat, has necessarily to be made on lesser roads, and the difficulty of ample movement from one to another, or of rapid deployment or change of front, becomes prodigious. Blucher, if attacked during this march, would most probably have left one corps to detain the enemy, while he, with the other three corps, resumed his march towards Wellington; for to turn back would have been as dangerous as to advance. ”

“ The Prussian right wing had not been crushed; it retreated because its position was dangerous as soon as the centre gave way. The left wing, Thielemann’s Corps, was very firm. There was also the probable arrival of Bulow’s Corps by the Namur road. The Prussian army was still full of fight. No news from Ney had been received during the day. Napoleon was in entire ignorance as to the state of affairs on his left wing. Lastly, a pursuit by night, especially the pursuit of a still formidable enemy, is a most dangerous task. ”

“ By a rapid crossing of the Sambre at Charleroi, Napoleon would force the First Corps back on Fleurus, where the Prussian army was to concentrate, and throw himself on the point of junction of the Allied armies when concentrated; namely, the Quatre-Bras-Sombreffe road. He knew that the Prussians, by reason of their dispositions, would be concentrated first, and he therefore hoped, by possessing himself of the point of junction, to beat their concentrated army before Wellington, who, he decided, would be much slower in assembling his troops, could come up to Quatre-Bras. ”

“ Men whose backs are turned on a victorious enemy who is treading on their heels, harassing their flanks, and cutting them down or capturing them by thousands, will think of nothing but their personal safety. The more time that is left to the retreating force, the more rear-guard positions it will be able to take up, and every rear-guard action gives time for the retreat to be carried further and in greater security. ”

“ At 8 A.M. definite news arrived of the French rout at Waterloo, and the Prussians were aroused to renew their efforts. The tidings had a great effect on the spirits of the men, and they rushed to the attack with great vigour, recapturing the wood of Rixensart. This counter-stroke deceived Grouchy, who at first believed that the Prussians had been reinforced; but Stulpnagel’s effort was short-lived, and could not be pushed further, for want of supports. Consequently, Grouchy in his turn ordered a fresh attack, and the Prussians were again driven out of the wood. ”

“ Ney, on his return to Gosselies from his interview with Napoleon, ordered Reille to move Jerome’s and Foy’s Divisions, with his five batteries of artillery, to Frasnes, whither he himself went. Ney’s misgivings as to the wisdom of attacking Quatre-Bras were not unfounded. He feared a movement against his right flank by a strong force of Prussians whom he believed to be between Quatre-Bras and Ligny. He was anxious for his left flank, in case some of Wellington’s troops were moving against him from the direction of Nivelles. He was ignorant of the real strength in front of him at Quatre-Bras. ”

“ Suchet was a better man than Soult for Chief of the Staff, and Soult was a better man than Grouchy for the command of the right wing. But Suchet already commanded the army of the Alps.
However, at the time, it was not possible for Napoleon to make an alternative selection, and Grouchy was the only man available. Up to this point there had been no reason to doubt his capabilities, and it is not fair to criticise the man until his faults have been clearly proved; it must be remembered that mistakes in war are inevitable ”

“ If there were good and sufficient reasons for not pursuing by night, there were none for the delay when day broke. Grouchy had been summoned to Napoleon’s headquarters at Fleurus at eleven o’clock at night, when he received orders to send the two Corps of cavalry under Pajol and Excelmans to pursue the enemy at daybreak. Grouchy then remained at Fleurus until 9 A.M., when he was ordered to accompany Napoleon on a tour of inspection of the battlefield! ”

“ For Grouchy should never have allowed it to be carried out. By efficient reconnoitring, such as was carried out by the Prussian Hussars, Grouchy should have discovered the threatened movement early in the morning of the 18th, and have sent Maurin’s Cavalry Division, followed by Excelmans’ Cavalry and Gérard’s Corps, to Moustier and Ottignies. The cavalry could have reached the bridges there in time to threaten Blucher’s flank, and prevent him, if not from assisting Wellington with a part of his forces, at least from throwing his whole weight into the battle against Napoleon. ”

“ Stulpnagel perceived that little good could come of an attack the successive steps of which had merged into a confused line, and resolved to withdraw to the shelter of the wood behind Point-du-Jour, leaving a line of outposts to watch the front edge. The cavalry took post behind the 122 infantry; and the French fearing to venture through the uncertainties of the night, the fighting on this side ceased.
Meanwhile, on the Prussian left, before Wavre and the Mill of Bierges, the fighting went on most vigorously. The darkness did not prevent the fury of the fight ”

“ But the Allies, operating on six different lines, would be obliged to detach large forces to watch Suchet and Lecourbe, and to mask the great strongholds in their way. When they had approached Paris, their great armies would have been thus reduced to 400,000 men, far from their bases, and faced by the greatest soldier of modern time. The 6 campaign of 1814 would be repeated, but Napoleon would have 200,000 men at his back, and a powerful entrenched camp at Paris. Thus the Allies would in all probability be crushed in detail ”