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BATTLE OF ARBELA.

unwieldy body which it was at Cynoscephalæ and Pydna. His men were veterans; and he could obtain from them an accuracy of movement and steadiness of evolution, such as probably the recruits of his father would only have floundered in attempting, and such as certainly were impracticable in the phalanx when handled by his successors: especially as under them it ceased to be a standing force, and became only a militia.[1] Under Alexander the phalanx consisted of an aggregate of eighteen thousand men, who were divided into six brigades of three thousand each. These were again subdivided into regiments and companies; and the men were carefully trained to wheel, to face about, to take more ground, or to close up, as the emergencies of the battle required. Alexander also arrayed troops armed in a different manner, in the intervals of the regiments of his phalangites, who could prevent their line from being pierced, and their companies taken in flank, when the nature of the ground prevented a close formation; and who could be withdrawn, when a favourable opportunity arrived for closing up the phalanx or any of its brigades for a charge, or when it was necessary to prepare to receive cavalry.

Besides the phalanx, Alexander had a consi-

  1. See Niebuhr.