Överraskningen i Lübeck (1806) [sv]

The Battle of Lübeck took place on 6 November 1806 in Lübeck, Germany between soldiers of the Kingdom of Prussia led by Gebhard Leberecht von Blücher, who were retreating from defeat at the Battle of Jena–Auerstedt, and troops of the First French Empire under Marshals Murat, Bernadotte, and Soult, who were pursuing them. In this War of the Fourth Coalition action, the French inflicted a severe defeat on the Prussians, driving them from the neutral city. Lübeck is an old Baltic Sea port approximately 50 kilometres (31 mi) northeast of Hamburg.

After their shattering defeat in October by Napoleon at the Battle of Jena–Auerstedt, the Prussian armies withdrew to the east bank of the Elbe River and marched northeast in an attempt to reach the Oder River. Aiming to annihilate his opponents' forces, Napoleon launched his Grande Armée in a headlong pursuit. A large portion of the fleeing Prussians took refuge in the fortress of Magdeburg where they were surrounded. Another large segment was intercepted and destroyed in the Battle of Prenzlau. This event triggered a series of capitulations of Prussian troops and fortresses.

Blocked from reaching the Oder, Blücher turned and raced to the west, chased by Murat, Bernadotte, and Soult. After a number of well-fought rear guard actions, Blücher's troops forced their way into the neutral city of Lübeck where they took up defensive positions. Bernadotte's soldiers broke through the city's northern defenses and overwhelmed the troops facing Murat and Soult. Blücher barely escaped from the city, though most of his staff was captured and Prussian casualties were enormous. The French brutally sacked Lübeck during and after the fighting. The next day, the French trapped the surviving Prussians against the Danish frontier and compelled Blücher to surrender.

Danish forces commanded by Johann Ewald were also mobilized and deployed at the nearby Danish-Prussian border with the purpose of preventing any French or Prussian forces from entering their territory (the original Prussian plan was to flee from the coming French to Denmark) and protecting Danish neutrality by force if necessary; however, the Danish forces did not take any significant part in the armed struggle save for a few minor skirmishes and negotiations with both the Prussian and the French, although during these Ewald himself was briefly detained by the French.

The French captured a small Swedish force during the battle. Bernadotte's courteous and respectful treatment of its officers and soldiers would in part lead to the kingdom offering its crown to the French marshal, almost four years after this battle.