The Battle of Austerlitz (December 2, 1805/11 Frimaire An XIV FRC), also known as the Battle of the Three Emperors, was one of the most important and decisive engagements of the Napoleonic Wars. Widely regarded as the greatest victory achieved by Napoleon, the Grande Armée of France annihilated a larger Russian and Austrian army led by Tsar Alexander I and Holy Roman Emperor Francis II. The battle occurred near the village of Austerlitz in the Austrian Empire (modern-day Slavkov u Brna in the Czech Republic). Because of the near-perfect execution of a calibrated but dangerous plan, the battle is often seen as a tactical masterpiece of the same stature as Cannae, the celebrated triumph by Hannibal some 2,000 years before.