page_title: Napoleonic Wars
section_title: War of the Fourth Coalition 1806–1807
hierarchical_section_title: Napoleonic Wars / War of the Fourth Coalition 1806–1807
caption_attribution_description: Deutsch: Einzug Napoleons an der Spitze seiner Truppen durch das Brandenburger Tor, nach der siegreichen Schlacht bei Jena und Auerstedt. Berlin, 27. Oktober 1806.
context_page_description: The Napoleonic Wars were a series of major conflicts pitting the French Empire and its allies, led by Napoleon I, against a fluctuating array of European powers formed into various coalitions, financed and led by the United Kingdom. It produced a brief period of French domination over most of Europe. The wars stemmed from the unresolved disputes associated with the French Revolution and its resultant conflict. The wars are often categorised into five conflicts, each termed after the coalition that fought Napoleon: the Third Coalition, the Fourth, the Fifth, the Sixth, and the Seventh.
  Napoleon, upon ascending to First Consul of France in 1799, had inherited a chaotic republic; he subsequently created a state with stable finances, a strong bureaucracy, and a well-trained army. In 1805, Austria and Russia formed the Third Coalition and waged war against France. In response, Napoleon defeated the allied Russo-Austrian army at Austerlitz in December 1805, which is considered his greatest victory. At sea, the British severely defeated the joint Franco-Spanish navy in the Battle of Trafalgar on 21 October 1805.
context_section_description: Within months of the collapse of the Third Coalition, the Fourth Coalition (1806–07) against France was formed by Britain, Prussia, Russia, Saxony, and Sweden. In July 1806, Napoleon formed the Confederation of the Rhine out of the many tiny German states which constituted the Rhineland and most other western parts of Germany. He amalgamated many of the smaller states into larger electorates, duchies, and kingdoms to make the governance of non-Prussian Germany smoother. Napoleon elevated the rulers of the two largest Confederation states, Saxony and Bavaria, to the status of kings.
  In August 1806, the Prussian king, Frederick William III, decided to go to war independently of any other great power. The army of Russia, a Prussian ally, in particular was too far away to assist. On 8 October 1806, Napoleon unleashed all the French forces east of the Rhine into Prussia. Napoleon defeated a Prussian army at Jena (14 October 1806), and Davout defeated another at Auerstädt on the same day. 160,000 French soldiers (increasing in number as the campaign went on) attacked Prussia, moving with such speed that they destroyed the entire Prussian army as an effective military force. Out of 250,000 troops the Prussians sustained 25,000 casualties, lost a further 150,000 as prisoners, 4,000 artillery pieces, and over 100,000 muskets. At Jena, Napoleon had fought only a detachment of the Prussian force. The battle at Auerstädt involved a single French corps defeating the bulk of the Prussian army. Napoleon entered Berlin on 27 October 1806. He visited the tomb of Frederick the Great and instructed his marshals to remove their hats there, saying, "If he were alive we wouldn't be here today". Napoleon had taken only 19 days from beginning his attack on Prussia to knock it out of the war with the capture of Berlin and the destruction of its principal armies at Jena and Auerstädt. Saxony left Prussia, and together with small states from north Germany, allied with France.
  In the next stage of the war, the French drove Russian forces out of Poland and employed many Polish and German soldiers in several sieges in Silesia and Pomerania, with the assistance of Dutch and Italian soldiers in the latter case. Napoleon then turned north to confront the remainder of the Russian army and to try to capture the temporary Prussian capital at Königsberg. A tactical draw at Eylau (7–8 February 1807), followed by capitulation at Danzig (24 May 1807) and the Battle of Heilsberg (10 June 1807), forced the Russians to withdraw further north. Napoleon decisively beat the Russian army at Friedland (14 June 1807), following which Alexander had to make peace with Napoleon at Tilsit (7 July 1807). In Germany and Poland, new Napoleonic client states, such as the Kingdom of Westphalia, Duchy of Warsaw, and Republic of Danzig, were established.
  By September, Marshal Guillaume Brune completed the occupation of Swedish Pomerania, allowing the Swedish army to withdraw with all its munitions of war.
caption: After defeating Prussian forces at Jena, the French Army entered Berlin on 27 October 1806.
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