Fought September 6 and 7, 394, between Theodosius, Emperor of the East, and Eugenius, the usurping Emperor of the West, whose army was commanded by Arbogastes. The first day’s fighting went against Theodosius, who was only saved by darkness from a severe reverse, but during the night a force sent by Arbogastes to secure the passes in Theodosius’ rear, deserted to his standard, and thus reinforced and aided by a dust storm which blew in the faces of his antagonists and disordered their ranks, he on the following day gained a signal victory. Aras (First Mahratta War). Fought May 18, 1775, between Raghunath Rao, the claimant to the Peshwaship, with 20,000 Mahrattas, and 2,500 British troops under Colonel Keating, and the army of the Mahratta chieftains, 25,000 strong under Hari Pant Phunhay. Raghunath’s undisciplined levies fled, and threw the British line into confusion; but they rallied, and after hard fighting repulsed the Mahrattas with heavy loss. The British lost 222, including 11 officers. Arausio (Fourth Gallic Invasion). Fought B.C. 105, when the Gauls under Boiorix totally routed two consular armies under Cæpio and Cn. Mallius Maximus. It is said that 80,000 Romans fell. Arbela (Alexander’s Asiatic Campaign). Fought October 31, 331 B.C., between 47,000 Macedonians under Alexander the Great, and the Persian army, three or four times as numerous, under Darius Codomannus. Alexander, who led the Macedonian right wing, forced a passage between the Persian left and centre, and attacked the centre on the flank. After a stubborn resistance, and though meanwhile the Macedonian left had been hard pressed, the Persians gave way, and Darius taking to flight, the whole army fled in confusion, and was routed with enormous loss, especially at the passage of the Lycas, which barred their retreat. This victory made Alexander master of Asia. Arcis-sur-Aube (Allied Invasion of France). Fought March 21, 1814, between 23,000 French under Napoleon, and 60,000 allies under Schwartzenberg. The French made a gallant stand against superior numbers, and in the end effected an orderly retreat, with a loss of about 2,000. The allies’ losses were considerably heavier. Arcola (Napoleon’s Italian Campaigns).