33.3
But before the foremost ranks were engaged the Barbarians gave way, and were hotly pursued, Alexander driving the conquered foe towards the centre of their array, where Dareius was.Alexander’s tactics are minutely described by Arrian ( Anab. iii. 14, 1-3). For from afar he was seen by Alexander through the deep ranks of the royal squadron of horse drawn up in front of him, towering conspicuous, a fine-looking man and tall, standing on a lofty chariot, fenced about by a numerous and brilliant array of horsemen, who were densely massed around his chariot and drawn up to receive the enemy.
33.4
But when they saw Alexander close at hand and terrible, and driving those who fled before him upon those who held their ground, they were smitten with fear and scattered, for the most part. The bravest and noblest of them, however, slain in front of their king and falling in heaps upon one another, obstructed the Macedonians in their pursuit, weaving and twining themselves in their last agonies about riders and horses.