In his "Commentaries," written at St. Helena, Napoleon sharply criticised the action of Gneisenau in retreating northwards to Wavre, because that town is farther distant from Wellington's line of retreat than Sombref is from Quatre Bras, and is connected with it only by difficult cross-roads. He even asserted that the Prussians ought to have made for Quatre Bras, a statement which presumes that Gneisenau could have rallied his army sufficiently after Ligny to file away on the Quatre Bras chaussée in front of Napoleon's victorious legions. But the Prussian army was virtually cut in half, and could not have reunited so as to attempt the perilous flank[pg.478] march across Napoleon's front. We shall, therefore, probably not be far wrong if we say of this criticism that the wish was father to the thought. A march on Quatre Bras would have been a safe means of throwing away the Prussian army.[[497]]
To the present writer it seems probable that Gneisenau's action, in the first instance, was undertaken as the readiest means of reuniting the Prussian wings. But Gneisenau cannot have been blind to the advantages of a reunion with Wellington, which a northerly march would open out. The report which he sent to his Sovereign from Wavre shows that by that time he believed the Prussian position to be "not disadvantageous"; while in a private letter written at noon on the 17th he expressly states that the Duke will accept battle at Waterloo if the Prussians help him with two army corps. Gneisenau's only doubts seem to have been whether Wellington would fight and whether his own ammunition would be to hand in time. Until he was sure on these two points caution was certainly necessary.
The results of this prompt rally of the Prussians were infinitely enhanced by the fact that Wellington soon found it out, while Napoleon did not grasp its full import until he was in the thick of the battle of Waterloo. To the final steps that led up to this dramatic finale we must now briefly refer.
It is strange that Gneisenau, on the night of the 16th, took no steps to warn his allies of the Prussian retreat, and merely left them to infer it from his last message, that he must do so if he were not succoured. Müffling,[pg.479] indeed, says that a Prussian officer was sent, but was shot by the French on the British left wing. Seeing, however, that Wellington had beaten back Ney's forces before the Prussian retreat began, the story may be dismissed as a lame excuse of Gneisenau's neglect.[[498]]
From the risk of being crushed by Napoleon, the Anglo-Dutch forces were saved by the vigilance of their leader and the supineness of the enemy. After a brief rest at Genappe, the Duke was back at the front at dawn, and despatched two cavalry patrols towards Sombref to find out the results of the battle. The patrol, which was accompanied by the Duke's aide-de-camp, Colonel Gordon, came into touch with the Prussian rear. On his return soon after 10, the staff-officer, Basil Jackson, was at once sent to bid Picton immediately prepare to fall back on Waterloo, an order which that veteran received very sulkily.[[499]] Shortly after Gordon's return, a Prussian orderly galloped up and confirmed the news of their retreat, which drew from the Duke the remark: "Blücher has had a d——d good licking and gone back to Wavre.... As he has gone back, we must go too." The infantry now began to file off by degrees behind hedges or under cover of a screen of cavalry and skirmishers, these keeping Ney's men busy in front, until the bulk of the army was well through the narrow and crowded street of Genappe.
And how came it that Napoleon and Ney missed this golden opportunity? In the first case, it was due to their chiefs of staff, who had not sent overnight any tidings as to the results of their respective battles. Until Count Flahaut returned to the Imperial headquarters about 8 a.m., Napoleon knew nothing as to the position of affairs at Quatre Bras; while a similar carelessness on Soult's part left Ney powerless to attempt anything against Wellington until somewhat later in the morning.[pg.480]
But Napoleon's inaction lasted nearly up to 11.30. How is this to be accounted for? In reply, some attribute his conduct to illness of body and torpor of mind—a topic that will engage our attention presently; others assert that the army urgently needed rest; but the effective cause was his belief that the Prussians were retreating eastwards away from Wellington. This was the universal belief at headquarters. He had ordered Grouchy to follow them at dawn; Grouchy's lieutenant, Pajol, struck to the south-east, and by 4 a.m. reported that Blücher was heading for Namur. Such was the news that the Emperor heard from Grouchy about 8 a.m.—he refused to grant him an audience earlier. Forthwith he dictated a letter to Ney to the following effect: that the Prussians had been routed and were being pursued towards Namur; that the British could not attack him (Ney) at Quatre Bras, for the Emperor would in that case march on their flank and destroy them in an instant; that he heard with pain how isolated Ney's troops had been on the 16th, and ordered him to close up his divisions and occupy Quatre Bras. If he could not effect that task, he must warn the Emperor, who would then come. Finally, he warned him that "the present day is needed to finish this operation, to complete the munitions of war, to rally stragglers and call in detachments."
A singular day's programme this for the man who had trebled the results of the victory of Jena by the remorseless energy of the pursuit. After dictating this despatch, he ordered Lobau to take a division of infantry for the support of Pajol on the Namur road. He then set out for St. Amand in his carriage. On arriving at the place of carnage he mounted his horse and rode slowly over the battle-field, seeing to the needs of the wounded of both nations with kindly care, and everywhere receiving the enthusiastic acclaim of his soldiery. This done, he dismounted and talked long and earnestly with Grouchy, Gérard, and others on the state of political parties at Paris. They listened with [pg.481]ill-concealed restlessness. At Fleurus Grouchy asked for definite orders, and received the brusque reply that he must wait. But now, towards 11 o'clock, the Emperor hears that Wellington is still at Quatre Bras, that Pajol has captured eight Prussian guns on the Namur road, and that Excelmans has seen masses of the enemy at Gembloux. At once he turns from politics to war.
His plan is formed. While he himself falls on the British, Grouchy is to pursue the Prussians with the corps of Gérard and Vandamme, the division of Teste (from Lobau's command), and the cavalry corps of Pajol, Excelmans, and Milhaud. The Marshal begged to be relieved of the task, setting forth the danger of pursuing foes that were now reunited and far away. It was in vain. About 11.30 the Emperor developed his verbal instructions in a written order penned by Bertrand. It bade Grouchy proceed to Gembloux with the forces stated above (except Milhaud's corps and a division of Vandamme's corps, which were to follow Napoleon) to reconnoitre on the roads leading to Namur and Maestricht, to pursue the enemy, and inform the Emperor as to their intentions. If they have evacuated Namur, it is to be occupied by the National Guards. "It is important to know what Blücher and Wellington mean to do, and whether they propose reuniting their armies in order to cover Brussels and Liège, by trying their fortune in another battle...."[[500]]
As Napoleon's fate was to depend largely on an intelligent carrying out of this order, we may point out that it consisted of two chief parts, the general aim and the means of carrying out that aim. The aim was to find out the direction of the Prussians' retreat, and to prevent them joining Wellington, whether for the defence of Brussels or of Liège. The means were an advance to Gembloux and scouting along the Namur and Maestricht roads. The chance that the allies might reunite for the defence of Brussels was alluded to, but no measures were prescribed as to scouting in that direction: these[pg.482] were left to Grouchy's discretion. It must be confessed that the order was not wholly clear. To name the towns of Brussels and Liège (which are sixty miles apart) was sufficiently distracting; and to suggest that only the eastern and south-eastern roads should be explored was certain to limit Grouchy's immediate attention to those roads alone. For he distrusted alike his own abilities and the power of the force placed at his disposal; and an officer thus situated is sure to inclose himself in the strict letter of his instructions. This was what he did, with disastrous results.