Stralsund, a port at the Baltic Sea in Swedish Pomerania, was surrendered to France after the siege of 1807 during the War of the Fourth Coalition. During this war, Prussian captain Ferdinand von Schill distinguished himself by cutting off French supply lines using guerrilla tactics in 1806. In 1807, he raised a freikorps and successfully fought the French forces in what he intended to become a patriotic insurrection. In January and February 1809, the German resistance in French-held Westphalia invited Schill to lead an uprising. The Battle of Stralsund was fought between Ferdinand von Schill's freikorps and Napoleonic forces in Stralsund. In a "vicious street battle", the freikorps was defeated and Schill was killed in action.