foreign prisoners also assisted them by falling upon the Macedonians in the midst of the action. But the commanders of the men who had been posted as a reserve to the first phalanx, learning what was taking place, quickly moved from the position which they had been ordered to take, and coming upon the Persians in the rear, killed many of them there collected round the baggage. But the rest of them gave way and fled. The Persians on the right wing, who had not yet become aware of the flight of Darius, rode round Alexander's left wing and attacked Parmenio in flank.[1]
CHAPTER XV.
Defeat of the Persians and Pursuit of Darius.
At this juncture, while the Macedonians were doubtful as to the result of the battle, Parmenio sent a messenger to Alexander in haste, to tell him that their side was in a critical position and that he must send him aid.[2] When this news was brought to Alexander, he immediately turned back again from the pursuit, and wheeling round with the Companion cavalry, led them with great speed against the right wing of the foreigners. In the first place he assaulted the fleeing cavalry of the enemy, the Parthians, some of the Indians, and the most numerous and the bravest division of the Persians. Then ensued the most obstinately contested cavalry fight in the whole engagement. For being drawn up by squadrons as it were, the foreigners wheeled round and falling on Alexander's men face to face, they no longer relied
