The Battle of Jena, which took place on October 14, 1806, was a significant military conflict that saw the armies of Napoleonic France and Prussia clash in a brutal fight. This pivotal battle is also known as the Battle of Jena-Auerstedt, the Battle of Jena-Auerstedt, and the Battle of Jena-Auerstedt. Other synonyms for this battle include the Battles of Jena and Auerstedt, Auerstädt, and Vierzehnheiligen. Regardless of which moniker is used, the Battle of Jena remains a crucial moment in European history, marking the collapse of Prussia's military power and Napoleon's rise to dominance on the continent.