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.

Avaricum (Gallic War).

This place was made the headquarters of the revolted Gauls under Vercingetorix, B.C. 53, and was besieged by Cæsar, with 50,000 Romans. The place was strongly defended, but supplies ran short, and Vercingetorix attempted to withdraw his troops. In this he was unsuccessful, and the Romans, delivering a vigorous assault, took possession of the town, and massacred the garrison and inhabitants.

Avus (Second Macedonian War).

Fought B.C. 198, between 20,000 Macedonians under Philip, and two Roman legions under T. Quinctius Flamininus. A force of 4,000 legionaries penetrated to the rear of Philip's camp, and when Flamininus attacked in front, they fell upon the Macedonian rear, and completely routed them, with a loss of 2,000.

Axarquia (War of Granada).

Fought March 20, 1483, between a Spanish force of 3,000 knights, and about 2,000 infantry, under the Marquis of Cadiz, and a strong Moorish force under Abul Hasan. The Spaniards were marching through the defile of Axarquia, on their way to attack Malaga, when they were assailed in front and flank, and totally routed, losing 800 killed and 1,600 prisoners. Among the killed were 400 men of rank.

Ayacucho (South American War of Independence).

Fought December 9, 1824, between the South American patriots, 5,780 strong, under Sucre, and the Spaniards, 9,310 in number, under Laserna. The latter were routed with a loss of 2,100 killed and wounded, and over 3,500 prisoners, including Laserna, in addition to 15 guns. The Patriots lost 979. This engagement, which is also known[known] as the Battle of Candorcanqui, practically decided the question of South American independence.

Aylesford (Jutish Invasion).