Which event is associated with the term "Battle of Three Emperors"?

The term "Battle of Three Emperors" refers to the Battle of Austerlitz, which took place on December 2, 1805. This battle was named for the significant leaders involved: Tsar Alexander I of Russia, Emperor Francis II of Austria, and Emperor Napoleon I of France. It is considered one of Napoleon's greatest victories, where he cleverly maneuvered his forces to defeat a numerically superior Allied army.

The context of the battle is crucial as it marked a turning point in the Napoleonic Wars and solidified Napoleon's reputation as a military strategist. The victory at Austerlitz effectively undermined the Third Coalition against France, leading to a Treaty that favored French dominance in Europe for years to come. This outcome contrasts sharply with other battles listed in the options, such as Waterloo, which was a decisive defeat for Napoleon, and Leipzig, which marked another significant setback for him. Jena-Auerstedt, while a notable victory, does not share the same association with three emperors. Thus, Austerlitz is distinctively recognized with this term due to its historical significance and the high-ranking figures involved.