The War of the Fourth Coalition (1806-1807) was a conflict involving several European powers against the French Empire led by Napoleon Bonaparte. The coalition included countries like Prussia, Russia, Britain, and Sweden, aiming to curb Napoleon's expansion across Europe. The war began after Napoleon's victory at the Battle of Jena-Auerstedt, which resulted in the swift defeat of Prussia. Following the initial battles, the conflict continued with the Treaty of Tilsit in 1807, which marked the end of hostilities. This treaty significantly expanded French influence in Europe and established a temporary peace between France and Russia, reshaping the political landscape of the continent.