Skilful and learned in the theory of war, the Archduke Charles felt his inferiority in face of the unexpected genius of the Emperor Napoleon. He had carefully fortified Aspern, Essling, Ensdorf, but he had not foreseen that the place of disembarkation, and the point of attack, would be changed. The heights which ranged from Neusiedel to Wagram, well occupied by excellent troops, were not furnished with redoubts; it was, however, these same heights the conqueror was about to attack.
The bridges which united the right bank to the island of Lobau were at present out of danger from all inundations and accidents. New and ingenious inventions had utilized all the resources drawn from the magazines of Vienna and the vast forests of Austria. A stockade protected the roadway, and flying bridges of an extraordinary size and solidity could be thrown in several hours over the small arm of the stream which separated the island of Lobau from the left bank. Two days previously the archduke had quitted the heights to approach the banks of the Danube, waiting uselessly for the attack of the enemy; on the 3rd July he drew back his forces towards the hills. The columns of the French continued to defile over the great bridge, and massed themselves little by little on the island. The cannon-balls of the enemy began to rain on the shores of Lobau, but the space was too vast to permit the Austrian batteries to sweep the interior. During the night of the 4th the first bridges were thrown over the small arm of the Danube between the island and the mainland; flat-bottomed boats brought over soldiers without interruption, and these moored the boats and fixed the plankings. The enemy's fire had become incessant and deadly. The engineers continued their work without appearing to perceive the danger which threatened them, any more than the thunder which rolled over their heads, the lightning which flashed through the darkness, or the rain, which did not cease to fall in torrents. The batteries of the island of Lobau were at length unmasked, everywhere furnished with guns of the largest calibre, and the fire was directed towards the little town of Enzensdorf; after that the Archduke Charles could not deceive himself as to the menaced point. The troops of the Austrian General Nordmann, which had occupied the plain, had fallen back under the fire of the guns. The day rose brilliant and pure, the last clouds massed by the storm were dispersed by the rays of the sun. The long files of our troops advanced without precipitation and without disorder; at the first break of day, the emperor himself had crossed the river.
The Archduke Charles contemplated this scene from the heights of Wagram. His advanced posts had already been forced to give up to their enemies the ground they had occupied the day before. The Austrian general had not yet counted on the irresistible impetuosity of the torrent of men, horses, and artillery, which the island of Lobau continued to vomit on the shores of the Danube. "It is true that they have conquered the river." said the Archduke Charles to his brother the Emperor Francis, standing by his side. "I allow them to pass, that I may drive them presently into its waves." "All right," said the emperor, dryly; "but do not let too many pass." Seventy thousand French already deployed in the plain. As they defiled past, the soldiers cried, "Long live the emperor !"
The town of Enzensdorf was merely a mass of ruins when Marshal Masséna commanded the attack upon it, and the little corps of Austrians defending it were soon put to the sword; while on the right, General Oudinot had taken possession of the chateau of Sachsengang. The entire army advanced, without obstacle, against the heights of Wagram; Essling and Aspern were occupied by our troops. The dispositions of the troops of the Archduke Charles were not made; he was obliged to order detached bodies to retreat, abandoning positions which were badly defended; the great battle was deferred till the morrow. A rash attack against the plateau of Wagram was repulsed, and for a moment several corps were in disorder; the retreat sounded, and the troops bivouacked at their posts. The last instructions had been given. Marshal Davout alone still remained with the emperor. The Archduke Charles did not sleep—the supreme effort of the Austrian monarchy was to be tried at the break of day.
The extent of the field of battle, and the distance between the positions, presented serious difficulties for both armies. The genius of organization possessed by the Emperor Napoleon had in some measure obviated this by the care he had taken of his centre; the Archduke Charles felt it from the commencement of the combat. Obliged to send his orders great distances, he saw them badly obeyed; the left wing of his army attacked us first, whereas the right wing had been intended to take the offensive. Contrary to his custom, the Emperor Napoleon had ordered his troops to wait for the enemy.
It was four o'clock in the morning when the fire commenced. Marshal Bernadotte, who had remained in advance on the field of battle after his attack of the previous night against the plateau of Wagram, found himself menaced by the Austrians, and fell back on Marshal Masséna, still ill from a fall from his horse, and commanding his corps from an open carriage. The two marshals had brought back their troops against the little village of Aderklaa; but the archduke occupied it; the French were repulsed, and pushed by the enemy beyond Essling, which had again fallen into the hands of the Austrians.
Meantime, Marshal Davout, on the extreme right, had vigorously resisted the first attack of the columns of Rosenberg, and obliged the Austrians to repass the rivulet of Russbach, and fall back upon Neusiedel. The marshal threw all his forces immediately against them. It was to him that was confided the honor of taking the plateau of Wagram.
The emperor had joined Marshal Masséna, talking a few minutes with him under a storm of balls which fell round the carriage: Napoleon walked his horse across the plain, impatiently waiting the great movement that he had ordered on the centre. At the head advanced a division of the army of Italy, commanded by Macdonald, little known to the young soldiers because of his long disgrace; he marched proudly, attired in his old uniform of the armies of the republic. Napoleon saw him unmoved under the fire, attentive to the least incidents of the battle: "Ah, the fine fellow! the fine fellow!" he repeated in a low voice.
The artillery of the guard arrived at a gallop, supporting by its hundred guns the impetuous attack of the centre: the Austrians recoiled from this enormous mass, the irresistible impulse of which nothing could stay. Macdonald had already reached Sussenbrunn, where the archduke and his generals had concentrated their last effort; and the French columns were stopped by their desperate resistance. For a moment they seemed destined to retreat in their turn; but Davout had succeeded in his attack against the heights of Neusiedel. The plateau of Wagram was in our hands; General Oudinot had effected his junction, after taking the position of Baumersdorf; and the Prince of Hohenzollern retreated before them. In vain the Archduke Charles had hoped to see his brother, the Archduke John, arrive in time to restore their chance; the struggle lasted for more than ten hours—all the positions had fallen into our power; the retreat of the Austrian army commenced, regular and well ordered, without precipitation or rout. Disorder, on the contrary, showed itself in the ranks of the conquerors, when, at the last moments of the struggle, some soldiers of the vanguard of the Archduke John appeared in the environs of Leopoldsdorf. The young troops, already disbanded in the joy of the victory—the servants of the army, the sutlers, the carriers of the wounded, were seized with a panic terror, and fell back with loud cries on the main body of the army, announcing that the enemy were returning to crush us. It was too late; the Archduke John had slowly executed the orders tardily received. His arrival could not change the issue of the battle; he fell back upon Hungary. The Archduke Charles had taken the road to Bohemia before the Emperor Napoleon was well informed of his march. The pursuit was, therefore, divided between Bohemia and Moravia. The forces of the enemy were dispersed during their retreat. The archduke had with him about 60,000 men, when General Marmont, with a corps of only 10,000, rejoined him at Znaïm, on the road to Prague.
It was there that Napoleon arrived on the 11th; Masséna was in advance, and a battle took place on the banks of the Taya, and after a sharp combat the bridge was forced. But already Prince John of Lichtenstein had come to ask a suspension of hostilities, announcing openly the intention of the Austrian government to begin negotiations for peace. The deliberations were carried on at the head-quarters, while the army ranged itself in the plain of Znaïm. The emperor recapitulated rapidly in his mind the dangers and chances of a prolonged war. The opinion of several of his generals was to follow up Austria, and crush the coalition finally. Napoleon felt the enormous burden weighing on his shoulders: he saw a difficult and lingering war in Spain, Prussia agitated, Russia cold and secretly ill- disposed, the difficulties of Rome, England for the future taking her part in the continental struggle: he cried, "Enough blood has been shed; let us make peace!" It was necessary to repeat his words several times to the hostile parties at Znaïm, to induce them to cease fighting. The officers whose duty it was to carry the intelligence to the field of battle were wounded before they were able to stop the combat.