scanty band dare to plunge into that living sea of war, their destruction seemed inevitable.
Darius felt, however, the critical nature to himself as well as to his adversary of the coming encounter. He could not hope to retrieve the consequences of a third overthrow. The great cities of Mesopotamia and Upper Asia, the central provinces of the Persian empire, were certain to be at the mercy of the victor. Darius knew also the Asiatic character well enough to be aware how it yields to the prestige of success, and the apparent career of destiny. He felt that the diadem was now either to be firmly replaced on his own brow, or to be irrevocably transferred to the head of his European conqueror. He, therefore, during the long interval left him after the battle of Issus, while Alexander was subjugating Syria and Egypt, assiduously busied himself in selecting the best troops which his vast empire supplied, and in training his varied forces to act together with some uniformity of discipline and system.
The hardy mountaineers of Affghanistan, Bokhara, Khiva, and Thibet, were then, as at present, far different to the generality of Asiatics in war-like spirit and endurance. From these districts, Darius collected large bodies of admirable infantry; and the countries of the modern Kurds and Turkomans supplied, as they do now, squadrons of horse-
