page_title: War of the Third Coalition
section_title: Battle of Ulm
hierarchical_section_title: War of the Third Coalition / Ulm campaign / Battle of Ulm
caption_attribution_description: French&#58; Reddition de la ville d’Ulm, le 20 octobre 1805, Napoléon Ier recevant la capitulation du général Mack.title QS:P1476,fr:"Reddition de la ville d’Ulm, le 20 octobre 1805, Napoléon Ier recevant la capitulation du général Mack." label QS:Lfr,"Reddition de la ville d’Ulm, le 20 octobre 1805, Napoléon Ier recevant la capitulation du général Mack."
context_page_description: The War of the Third Coalition was a European conflict spanning the years 1803 to 1806. During the war, France and its client states under Napoleon I defeated an alliance, the Third Coalition, made up of Great Britain, the Austrian Empire, Russia, and others. Prussia remained neutral during the war.
  Britain had already been at war with France following the breakdown of the Peace of Amiens and remained the only country still at war with France after the Treaty of Pressburg. From 1803–1805, Britain stood under constant threat of a French invasion. The Royal Navy, however, secured mastery of the seas and decisively destroyed a Franco-Spanish fleet at the Battle of Trafalgar in October 1805.
  The Third Coalition itself came to full fruition in 1804–05 as Napoleon's actions in Italy and Germany spurred Austria and Russia into joining Britain against France.
context_section_description: Other actions took place on the 14th. Murat's forces joined Dupont at Albeck just in time to drive off an Austrian attack from Werneck; together Murat and Dupont beat the Austrians to the north in the direction of Heidenheim. By night on the 14th, two French corps were stationed in the vicinity of the Austrian encampments at Michelsberg, right outside of Ulm. Mack was now in a dangerous situation: there was no longer any hope of escaping along the north bank, Marmont and the Imperial Guard were hovering at the outskirts of Ulm to the south of the river, and Soult was moving from Memmingen to prevent the Austrians escaping south to the Tyrol. Troubles continued with the Austrian command as Ferdinand overrode the objections of Mack and ordered the evacuation of all cavalry from Ulm, a total of 6,000 troopers. Murat's pursuit was so effective, however, that only eleven squadrons joined Werneck at Heidenheim. Murat continued his harassment of Werneck and forced him to surrender with 8,000 men at Trochtelfingten on 19 October; Murat also took an entire Austrian field park of 500 vehicles, then swept on towards Neustadt and captured 12,000 Austrians.
  Events at Ulm were now reaching a conclusion. On 15 October, Ney's troops successfully charged the Michelsberg encampments and on the 16th the French began to bombard Ulm itself. Austrian morale was at a low point and Mack began to realize that there was little hope of rescue. On 17 October, Napoleon's emissary, Ségur, signed a convention with Mack in which the Austrians agreed to surrender on 25 October if no aid came by that date. Gradually, however, Mack heard of the capitulations at Heidenheim and Neresheim and agreed to surrender five days before schedule on 20 October. 10,000 troops from the Austrian garrison managed to escape, but the vast majority of the Austrian force marched out on the 21st and laid down their arms without incident, all with the Grande Armée drawn up in a vast semicircle observing the capitulation.
caption: General Mack surrenders his army at Ulm. Napoleon's strategic encirclement of the Austrians, in conjunction with the Battle of Austerlitz six weeks later, sealed the fate of the Third Coalition.
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