Napoleon ordered the methodical Marshal Davout, commander of the right wing, who had just repulsed the assault by Rosenberg’s Austrians, to attack the enemy left flank. Davout was to take the village of Markgrafneusiedl, situated at the end of the plateau of Wagram. General Oudinot received the order to attack the enemy centre. Multitudes of blue troops surged forward while multicoloured cavalry charged. The French went at it furiously, as did the Austrians. Both front lines were constantly reinforced, devouring regiments at a pace impossible to grasp.
On the left, the danger was increasing. Boudet’s division, overcome and still retreating, nevertheless tried to stem as much as possible the flow of Austrians along the bank of the Danube. General Boudet had wanted to entrench in Aspern, but Wallmod-en’s hussars had just massacred his gunners and had taken his fourteen cannon. He had therefore been forced to evacuate the village using sabre blows as defence ... Instead of sending reinforcements to his left, Napoleon had chosen to save his reserve infantry to use later to exploit an eventual breach of the Austrian centre. So he improvised another solution: Massena’s IV Corps was going to form a marching column and descend to the southwest to stop Klenau’s VI Corps. The problem was that in manoeuvring in this way, Massena first had to turn his back on the Austrian I Corps under Bellegarde, and the élite Liechtenstein Corps. Then he would expose his flank to Kolowrat’s III Corps before finally arriving level with the villages of Aspern and Essling, near the Danube, to confront Klenau. This five-mile march down the French left flank was likely to be extremely dangerous. To try to protect this manoeuvre Napoleon decided to use the cavalry and the artillery instead of infantry, which was most unusual in this type of movement. Lasalle’s light cavalry, Nansouty’s heavy cavalry and the cavalry of the Guard charged the Austrians intent on immobilising them. General Lauriston, who commanded the artillery of the Guard, was commanded to form a giant battery. He assembled all the pieces of artillery he could find - those of the Guard, of Prince Eugene and of the Bavarians under General de Wrede - and began to place the hundred and twelve cannon in a mile-long line along the north-east of the left flank, replacing Massena’s troops, who were about to depart. Over and above that, Napoleon gave the order to retake the village of Aderklaa. Moli-tor’s division, part of Massena’s IV Corps, succeeded in taking it. But it was clear that they would not keep it because the Austrians would try everything to recapture it. Aderklaa must hold out as long as possible in order to occupy the efforts of the troops of Bellegarde and Liechtenstein. In fact that village would serve as a lightning conductor to protect the back of IV Corps.
The majority of Massena’s corps therefore formed into a column.
Then the superior officers ordered, ‘Column, head left.’ This enormous formation of twenty thousand men began to march south-westwards. The new recruits were worried.
Margont was at the head of his company, sword in hand.
‘Where are we going?’ wondered Saber aloud. ‘And if we leave, who will make up the north of the left wing?’
In the ranks, the infantry exchanged appalled looks or questioned the non-commissioned officers.
‘Are we retreating, Sergeant?’ a conscript asked Lefine.
‘Everything’s all right! Everything’s going to plan,’ Lefine assured him.
An Austrian battery thundered in the south, near the Danube. ‘We’re encircled!’ yelled a fusilier.
‘The little Corsican is defeated!’ another one yelled louder.
The order of the companies changed again. The infantry speeded up; entire lines collided ... Sergeants and captains hurried to restore cohesion. Massena’s giant column resembled a house of cards on the point of collapse.
Margont trampled the fields of golden corn, hiding his anxiety. There were Austrians massed at his back, all along his right and facing him, in the south-west. He could see enemy columns all around like giant white worms rampaging across the plain towards them to devour them. The Austrian right wing was vastly superior in number to them and they had practically not fought at all.
‘Slow down, Corporal Pelain!’ he exclaimed for the fifth time, for his company had a tendency to catch up the company in front.
In reply came overhead whistles, and explosions rang out on all sides. A shell exploded in the middle of his company, throwing broken bodies into the air. The round shot plundered the rows of soldiers, like black bowling balls knocking over a line of skittles ... The survivors, spattered with human debris, stepped over mutilated bodies as they battled through the palls of smoke. Incandescent flashes ignited fires and these infernos burnt alive the wounded, unable to move. In spite of the unbearable sights around them, the formation had to stay together at all costs to intimidate the Austrians and keep them at bay.
Margont, ashen-faced, shouted: ‘Close ranks! Keep in line! Realign yourselves!’
Hundreds of other voices repeated the same instructions all along the column, in an endless echo interrupted by explosions and by the cries of the wounded.
The giant battery was not yet ready to support Massena’s IV Corps. The gun carriages were hurrying to their positions where the artillery busied themselves like ants around their guns to ready them for action. There was one cannon every twenty paces, over a mile stretch. Nothing like it had ever been seen before.
Massena decided to launch his light cavalry against the enemy, to prevent them from attacking his flank and finishing off the troops decimated by the round shot. To charge an enemy army aligned in battle order was not what hussars and mounted chasseurs usually did. Normally they were used for reconnaissance, for harassing the enemy and pursuing them when they were in retreat. But Massena only had Lasalle and Marulaz’s light cavalry at his disposal. These two thousand combatants launched themselves at the sixteen thousand men of Kolowrat’s III Corps.
The cavalry set off in a cacophony of hammering hoofs, whinnying and trumpet blasts. The 8th Hussars were at their head, riding in sparse groups. Relmyer was amongst the first. Pagin and Major Batichut were slightly ahead of him, hard on the heels of General Lasalle and his escort. The hussars were yelling, their faces whipped by the wind, brandishing their sabres, drunk with the excitement of their speed and the madness of war. They saw the enemy masses rapidly grow larger. In front of their eyes, regiments hastily formed square, lines of Austrian or Hungarian fusiliers took aim, battalions of the Landwehr or of Volunteers organised themselves as well as they could, artillerymen reloaded their cannon, uhlans, dressed all in green, before charging the assailants with their lances ... Relmyer bent low over his horse’s mane, his sabre in his hand. Pagin, sitting straight in his saddle, waved his sword, shouting, ‘Hurrah! Hurrah!’ The Austrians disappeared in the white smoke of their gunfire. A ball to the chest felled Pagin in the full flush of youth. Hussars were slipping out of their stirrups, collapsing with their mounts, shot to pieces by balls or canister shot ... The cavalry fought the Austrians. They sabred the artillerymen, massacred the isolated infantry, crushed the regiments ... Relmyer threw himself on a group of soldiers in grey coats. Suddenly he jumped. Here! Right here! He had just spotted him. It was him! The man he was hunting! Relmyer began to sabre with fury to clear a passage as far as his tormentor. But it seemed to him that the face kept moving, disappearing only to reappear elsewhere, like a reflection projected onto face after face in that crowd. Relmyer struck, slashed, struck ... Forms collapsed, soldiers threw themselves to the ground to avoid his blade, many fled and were killed by other hussars ...The formation finally broke up. It was a battalion of the Landwehr from Prague and not the Viennese Volunteers at all.
Finally the cavalry yielded to the superior number of their enemies and left at the gallop under a hail of Austrian bullets and round shot, taking away with them two cannon stolen from the enemy. During this time the Great Battery had finished positioning itself.