Here again, as at the water’s edge, Alexander was foremost in personal conflict. His pike having been broken, he turned to a soldier near him—Aretis, one of the horse-guards who generally aided him in mounting his horse—and asked for another. But this man, having broken his pike also, showed the fragment to Alexander, requesting him to ask some one else; upon which the Corinthian Demaratus, one of the companion-cavalry close at hand, gave him his weapon instead. Thus armed anew, Alexander spurred his horse forward against Mithridates (son-in-law of Darius), who was bringing up a column of cavalry to attack him, but was himself considerably in advance of it. Alexander thrust his pike into the face of Mithridates, and laid him prostrate on the ground: he then turned to another of the Persian leaders, Rhœsaces, who struck him a blow on the head with his scimitar, knocked off a portion of his helmet, but did not penetrate beyond. Alexander avenged this blow by thrusting Rhœsaces through the body with his pike. Meanwhile a third Persian leader, Spithridates, was actually close behind Alexander, with hand and scimitar uplifted to cut him down. At this critical moment, Clitus son of Dropides—one of the ancient officers of Philip, high in the Macedonian service—struck with full force at the uplifted arm of Spithridates and severed it from the body, thus preserving Alexander’s life. Other leading Persians, kinsmen of Spithridates, rushed desperately on Alexander, who received many blows on his armour, and was in much danger. But the efforts of his companions near were redoubled, both to defend his person and to second his adventurous daring. It was on that point that the Persian cavalry was first broken. On the left of the Macedonian line, the Thessalian cavalry also fought with vigour and success; and the light-armed foot, intermingled with Alexander’s cavalry generally, did great damage to the enemy. The rout of the Persian cavalry, once begun, speedily became general. They fled in all directions, pursued by the Macedonians.
But Alexander and his officers soon checked this ardour of pursuit, calling back their cavalry to complete his victory. The Persian infantry, Asiatics as well as Greeks, had remained without movement or orders, looking on the cavalry battle which had just disastrously terminated. To them Alexander immediately turned his attention. He brought up his phalanx and hypaspists to attack them in front, while his cavalry assailed on all sides their unprotected flanks and rear; he himself charged with the cavalry, and had a horse killed under him. His infantry alone was more numerous than they, so that against such odds the result could hardly be doubtful. The greater part of these mercenaries, after a valiant resistance, were cut to pieces on the field. We are told that none escaped, except two thousand made prisoners, and some who remained concealed in the field among the dead bodies.
In this complete and signal defeat, the loss of the Persian cavalry was not very serious in mere number, for only one thousand of them were slain. But the slaughter of the leading Persians, who had exposed themselves with extreme bravery in the personal conflict against Alexander, was terrible. There were slain not only Mithridates, Rhœsaces, Spithridates, whose names have been already mentioned, but also Pharnaces, brother-in-law of Darius, Mithrobarzanes satrap of Cappadocia, Atizyes, Niphates, Petines, and others; all Persians of rank and consequence. Arsites, the satrap of Phrygia, whose rashness had mainly caused the rejection of Memnon’s advice, escaped from the field, but died shortly afterwards by his own hand, from anguish and humiliation. The Persian or Perso-Grecian infantry, though probably more of them individually escaped than is implied in Arrian’s account, was as a body irretrievably ruined. No force was either left in the field, or could be afterwards reassembled in Asia Minor.