Against this, the disadvantage of Napoleon’s position was that the area east of the Pleisse did allow a huge army to deploy fully. If the allies were given the opportunity to bring their whole superiority in numbers and firepower to bear, then the emperor would be hard pressed to keep them at bay. If forced to retreat, his entire army would need to retire through the narrow streets of Leipzig, across the city’s only bridge over the river Elster, and down the long causeway through Lindenau which led westwards to safety, and ultimately to the Rhine. If the allies took Lindenau catastrophe threatened, but the village and its approaches were so easily defensible that only gross carelessness would allow this to happen. Even without this, however, getting a huge army, its wounded and its baggage away through Leipzig and Lindenau was bound to be tricky, especially after a lost battle.18
Prince Schwarzenberg’s operational plan for the battle seemed guaranteed, however, to ensure that Napoleon need not worry about defeat. The commander-in-chief could not be blamed for the fact that neither Bernadotte nor Bennigsen would reach the battlefield on 16 October. Bernadotte’s hesitations have already been explained and Bennigsen’s Army of Poland was advancing from Dresden as quickly as possible. Schwarzenberg was to blame, however, for planning to deploy Blücher’s troops and most of the Army of Bohemia west of Leipzig, where the terrain ensured that most of them would never get to grips with the enemy. The core of the Austrian army was supposed to advance over the Pleisse at Connewitz and Dölitz. Subsequently it would roll up the right flank of Napoleon’s line east of the river and cut off its retreat to Leipzig. This made no sense. Getting across the Pleisse would at best be very costly and time-consuming. Even if ultimately sheer numbers prevailed and some Austrian units got across the river, they would be advancing very close to Napoleon’s reserves and would have no chance of exploiting their initial success.
Truly bizarre, however, was Schwarzenberg’s plan to deploy the Grand Duke Constantine’s reserve corps, containing the Russian and Prussian Guards, on the west bank of the Elster to support the Austrian attack. On top of this he aimed to use both Blücher’s army and General Gyulai’s Austrian ‘corps’ to attack Lindenau, on terrain which made the deployment of tens of thousands of troops inconceivable. Had Schwarzenberg’s initial plan been executed, 54,000 troops would have been funnelled into the attack on Connewitz, 75,000 would have tried to reach Lindenau, and a mere 72,000 would have been left to oppose the bulk of Napoleon’s army east of the river.19
This plan was so obviously mistaken that all Alexander’s senior advisers protested and the emperor himself was mobilized to take on Schwarzenberg. Alexander was usually very tactful with the commander-in-chief and Schwarzenberg was a model of polite deference towards the monarch. On this occasion, however, the Austrian defended his plan stubbornly and there was a row. The upshot was that Blücher’s line of advance was directed back to the east bank of the Elster: he was to march on Leipzig down the main road from Halle. The Grand Duke Constantine’s reserve corps was also brought back to the east bank, though the Guards were only moved to Rotha, right by a bridge over the Pleisse and still 10 kilometres behind the front-line Russian divisions. But no amount of argument could shift Schwarzenberg from his basic idea of using the Austrian army on the west bank of the Elster.20
On this matter the commander-in-chief deferred to his chief of staff, General von Langenau, a Saxon officer who had transferred into the Austrian service only in 1813. Austrian sources admit that too much credence was given to Langenau’s superior knowledge of the local terrain as a native of the area. Rather lamely, they suggest that only the heavy recent rains had made the ground west of the Elster truly impassable. They also claim that French cavalry had stopped Schwarzenberg from conducting a thorough personal reconnaissance of the area. One recent author has even suggested that Langenau may have been a traitor to the allied cause, though there is no evidence for this. Perhaps the likeliest explanation is that Langenau was better at planning battles from maps than from any eye for actual terrain. On a map, his plan to thrust over the Elster into Napoleon’s flank and rear had a certain plausibility. If successful it would give the chief glory for victory to the Austrian forces in general and Langenau in particular. Possibly one need look no further for explanations for the bizarre deployment of the allied forces at Leipzig.21