Austerlitz (Campaign of the Danube).
Fought December 2, 1805, between 50,000 Russians and 25,000 Austrians under Kutusoff, and 75,000 French under Napoleon. An attempt to turn the French flank failed, and led to the left of the allies being entirely cut off from their centre. Their left and centre were thus beaten in detail, and the right, which had at first held its own, was surrounded, and driven in disorder across a partially frozen lake, where many perished. The allies lost 20,000 killed, wounded, and prisoners, and a large number of guns. The French lost about 5,000. The battle is called the Battle of the Three Emperors, those of Russia, Austria, and France being all present with their respective armies.