Though Prussia had not fought in a war since 1795, its military leaders were confident that they could win against Napoleon's troops. After a small incident concerning an anti-French pamphlet occurred, King Frederick William was finally pressured by his wife and family to break off his uneasy peace and enter the war against the French emperor. Prussian troops began mobilizing, culminating in the October 1806 Battle of Jena-Auerstedt, which was a disaster for Prussia, as the ability of its armed forces to continue the war were effectively wiped out. The king and queen had accompanied their troops into battle at Jena (with Louise apparently dressed "like an Amazon"), but had to flee from French troops.