(Dec. 2, 1805) First engagement of the War of the Third Coalition and one of Napoleon 's greatest victories.
In the battle, fought near Austerlitz in Moravia (now Slavkov u Brna, Czech Rep.), Napoleon's 68,000 troops defeated almost 90,000 Russians and Austrians under Russia's Alexander I and Francis I to conclude the Treaty of Pressburg, ceding Venetia to the French kingdom in Italy and temporarily ending the anti-French alliance. See also Napoleonic Wars .