The Battle of Jena-Auerstedt took place on October 14, 1806, during the Napoleonic Wars. It involved the forces of France, led by Napoleon Bonaparte, against the Prussian Army. The battle resulted in a decisive victory for the French, significantly weakening Prussia's military power and influence in Europe. Following the defeat, the Prussian forces faced disarray, leading to the occupation of their territory by French troops. This battle marked a turning point in the war, showcasing the effectiveness of Napoleon's tactics and contributing to the rise of French dominance in Europe during the early 19th century.