The news of his arrival shook the nerves of the Russian Emperor, and it was reserved for the usually diffident King of Prussia to combat all notion of retreat. Schwarzenberg's reconnaissance in force therefore took place punctually at four o'clock, when the French, after a brief rest, were well prepared to meet them. The Prussians had already seized the "Great Garden" which lines the Pirna road; and from this point of vantage they now sought to drive St. Cyr from the works thrown up on its flank and rear. But their masses were torn by a deadly fire and finally fell back shattered. The Russians, on their right, fared no better. At the allied centre and left, the attack at one time promised success. Under cover of a heavy cannonade from their slopes, the Austrians carried two redoubts: but, with a desperate charge, the Old Guard drove in through the gorges of these works and bayoneted the victors of an hour. As night fell, the assailants drew off baffled, after sustaining serious losses.
Nevertheless, the miseries of the night, the heavy rains of the dawning day and the knowledge of the strength of the enemy's position in front and of Vandamme's movement in their rear, failed to daunt their spirits. If they were determined, Napoleon was radiant with hope. His force, though smaller, held the inner line and spread over some three miles; while the concave front of the allies extended over double that space, and their left wing was separated from the centre by the stream and defile of Plauen. From his inner position he could therefore readily throw an overpowering mass on any part of their attenuated array. He prepared to do so against their wings. At those points everything promised success to his methods of attack.
Never, perhaps, in all modern warfare has the musket been so useless as amidst the drenching rains which beat upon the fighters at the Katzbach and before Dresden. So defective was its firing arrangement then that after a heavy storm only a feeble sputter came from whole battalions of foot: and on those two eventful days the honours lay with the artillery and l'arme blanche. As for the infantrymen, they could effect little except in some wild snatches of bayonet work at close quarters. This explains the course of events both at the Katzbach on the 26th, and at Dresden on the following day. The allied centre was too strongly posted on the slopes south of Dresden to be assailed with much hope of success. But, against the Russian vanguard on the allied right, Napoleon launched Mortier's corps and Nansouty's cavalry with complete success, until Wittgenstein's masses on the heights stayed the French onset. Along the centre, some thousand cannon thundered against one another, but with no very noteworthy result, save that Moreau had his legs carried away by a shot from a field battery that suddenly opened upon the Czar's suite. It was the first shot that dealt him this fatal wound, but several other balls fell among the group until Alexander and his staff moved away.
Meanwhile the great blow was struck by Napoleon at the allied left. There the Austrian wing was sundered from the main force by the difficult defile of Plauen; and it was crushed by one of the Emperor's most brilliant combinations. Directing Victor with 20,000 men of all arms to engage the white-coats in front, he bade Murat, with 10,000 horsemen, steal round near the bank of the Elbe and charge their flank and rear. The division of Count Metzko bore the brunt of this terrible onset. Nobly it resisted. Though not one musket in fifty would fire, the footmen in one place beat off two charges of Latour-Maubourg's cuirassiers, until he headed his line with lancers, who mangled their ranks and opened a way for the sword.[359] Then all was slaughter; and as Murat's squadrons raged along their broken lines, 10,000 footmen, cut off from the main body, laid down their arms. News of this disaster on the left and the sound of Vandamme's cannon thundering among the hills west of Pirna decided the allied sovereigns and Schwarzenberg to prepare for a timely retreat into Bohemia. Yet so bold a front did they keep at the centre and right that the waning light showed the combatants facing each other there on even terms.
During the night, the rumbling of wagons warned Marmont's scouts that the enemy were retreating;[360] and the Emperor, coming up at break of day, ordered that Marshal and St. Cyr to press directly on their rear, while Murat pursued the fugitives along the Freiburg road further to the west. The outcome of these two days of fighting was most serious for the allies. They lost 35,000 men in killed, wounded and prisoners—a natural result of their neglect to seize Fortune's bounteous favours on the 25th; a result, too, of Napoleon's rapid movements and unerring sagacity in profiting by the tactical blunders of his foes.
It was the last of his great victories. And even here the golden fruit which he hoped to cull crumbled to bitter dust in his grasp. As has been pointed out, he had charged General Vandamme, one of the sternest fighters in the French army, to undertake with 38,000 men a task which he himself had previously hoped to achieve with more than double that number. This was to seize Pirna and the plateau to the west, which commands the three roads leading towards Teplitz in Bohemia. The best of these roads crosses the Erzgebirge by way of Nollendorf and the gorge leading down to Kulm, the other by the Zinnwald pass, while between them is a third and yet more difficult track. Vandamme was to take up a position west or south-west of Pirna so as to cut off the retreat of the foe.
Accordingly, he set out from Stolpen at dawn of the 26th, and on the next two days fought his way far round the rear of the allied Grand Army. A Russian force of 14,000 men, led by the young Prince Eugène of Würtemberg and Count Ostermann, sought in vain to stop his progress: though roughly handled on the 28th by the French, the Muscovites disengaged themselves, fell back ever fighting to the Nollendorf pass, and took up a strong position behind the village of Kulm. There they received timely support from the forces of the Czar and Frederick William, who, after crossing by the Zinnwald pass, heard the firing on the east and divined the gravity of the crisis. Unless they kept Vandamme at bay, the Grand Army could with difficulty struggle through into Bohemia. But now, with the supports hastily sent him, Ostermann finally beat back Vandamme's utmost efforts. The defenders little knew what favours Fortune had in store.
A Prussian corps under Kleist was slowly plodding up the middle of the three defiles, when, at noonday of the 29th, an order came from the King to hurry over the ridge and turn east to the support of Ostermann. This was impossible: the defile was choked with wagons and artillery: but one of Kleist's staff-officers proposed the daring plan of plunging at once into cross tracks and cutting into Vandamme's rear. This novel and romantic design was carried out. While, then, the French general was showering his blows against the allies below Kulm, the Prussians swarmed down from the heights of Nollendorf on his rear. Even so, the French struggled stoutly for liberty. Their leader, scorning death or surrender, flung himself with his braves on the Russians in front, but was borne down and caught, fighting to the last. Several squadrons rushed up the steeps against the Prussians and in part hewed their way through. Four thousand footmen held their own on a natural stronghold until their bullets failed, and the survivors surrendered. Many more plunged into the woods and met various fates, some escaping through to their comrades, others falling before Kleist's rearguard. Such was the disaster of Kulm. Apart from the unbending heroism shown by the conquered, it may be called the Caudine Forks of modern war. A force of close on 40,000 men was nearly destroyed: it lost all its cannon and survived only in bands of exhausted stragglers.[361]
Who is to be blamed for this disaster? Obviously, it could not have occurred had Vandamme kept in touch with the nearest French divisions: otherwise, these could have closed in on Kleist's rear and captured him. Napoleon clearly intended to support Vandamme by the corps of St. Cyr, who, early on the 28th, was charged to co-operate with that general, while Mortier covered Pirna. But on that same morning the Emperor rode to Pirna, found that St. Cyr, Marmont, and Murat were sweeping in crowds of prisoners, and directed Berthier to order Vandamme to "penetrate into Bohemia and overwhelm the Prince of Würtemberg."[362] Then, without waiting to organize the pursuit, he forthwith returned to Dresden, either because, as some say, the rains of the previous days had struck a chill to his system, or as Marmont, with more reason, asserts, because of his concern at the news of Macdonald's disaster on the Katzbach. Certain it is that he recalled his Old Guard to Dresden, busied himself with plans for a march on Berlin, and at 5.30 next morning directed Berthier to order St. Cyr to "pursue the foe to Maxen and in all directions that he has taken." This order led St. Cyr westwards, in pursuit of Barclay's Russians, who had diverged sharply in that direction in order to escape Vandamme.
The eastern road to Teplitz was thus left comparatively clear, while the middle road was thronged with pursuers and pursued.[363] No directions were given by Napoleon to warn Vandamme of the gap thus left in his rear: neither was Mortier at Pirna told to press on and keep in touch with Vandamme now that St. Cyr was some eight miles away to the west. Doubtless St. Cyr and Mortier ought to have concerted measures for keeping in touch with Vandamme, and they deserve censure for their lack of foresight; but it was not usual, even for the Marshals, to take the initiative when the Emperor was near at hand. To sum up: the causes of Vandamme's disaster were, firstly, his rapid rush into Bohemia in quest of the Marshal's baton which was to be his guerdon of victory: secondly, the divergence of St. Cyr westward in pursuance of Napoleon's order of the 29th to pursue the enemy towards Maxen: thirdly, the neglect of St. Cyr and Mortier to concert measures for the support of Vandamme along the Nollendorf road: but, above all, the return of Napoleon to Dresden, and his neglect to secure a timely co-operation of his forces along the eastern line of pursuit.[364]