Meanwhile Memnon, to whom Darius had intrusted the guardianship of the whole coast of Asia Minor, with a large Phœnician fleet and a considerable body of Grecian mercenaries, acquired the important island of Chios, and a large part of Lesbos. But in the midst of his successes, he died of sickness, and no one was left able to take his place. Had his advice been taken, Alexander could not have landed in Asia. His death was an irreparable loss to Persian cause, and with his death vanished all hope of employing the Persian force with wisdom and effect. Darius now changed his policy, and resolved to carry on offensive measures on the land. He therefore summoned a vast army, from all parts of his empire, of five hundred thousand infantry, and one hundred thousand cavalry. An eminent Athenian, Charidemus, advised the Persian king to employ his great treasure in subsidizing the Greeks, and not to dream, with his undisciplined Asiatics, to oppose the Macedonians in battle. But the advice was so unpalatable to the proud and self-reliant king, in the midst of his vast forces, that he looked upon Charidemus as a traitor, and sent him to execution.
Neglect to guard the mountain passes. Which Alexander passes through unobstructed. Infatuation and errors of the Persians. The Persians advance to Issus.
It would not have been difficult for Darius to defend his kingdom, had he properly guarded the mountain passes through which Alexander must needs march to invade Persia. Here again Darius was infatuated, and he, in his self-confidence, left the passes over Mount Taurus and Mount Amanus undefended. Alexander, with re-enforcements from Macedonia, now marched from Gordium through Paphlagonia and Cappadocia, whose inhabitants made instant submission, and advanced to the Cilician Gates—an impregnable pass in the Taurus range, which opened the way to Cilicia. It had been traversed seventy years before by Cyrus the Younger, with the ten thousand Greeks, and was the main road from Asia Minor into Cilicia and Syria. The narrowest part [pg 384] of this defile allowed only four soldiers abreast, and here Darius should have taken his stand, even as the Greeks took possession of Thermopylæ in the invasion of Xerxes. But the pass was utterly undefended, and Alexander marched through unobstructed without the loss of a man. He then found himself at Tarsus, where he made a long halt, from a dangerous illness which he got by bathing in the river Cydnus. When he recovered, he sent Parmenio to secure the pass over Mount Amanus, six days' march from Tarsus, called the Cilician Gates. These were defended, but the guard fled at the approach of the Macedonians, and this important defile was secured. Alexander then marched through Issus to Myriandrus, to the south of the Cilician Gates, which he had passed. The Persians now advanced from Sochi and appeared in his rear at Issus—a vast host, in the midst of which was Darius with his mother, his wife, his harem, and children, who accompanied him to witness his anticipated triumph, for it seemed to him an easy matter to overwhelm and crush the invaders, who numbered only about forty thousand men. So impatient was Darius to attack Alexander that he imprudently advanced into Cilicia by the northern pass, now called Beylan, with all his army, so that in the narrow defiles of that country his cavalry was nearly useless. He encamped near Issus, on the river Pinarus. Alexander, learning that Darius was in his rear, retraced his steps, passed north through the Gates of Cilicia, through which he had marched two days before, and advanced to the river Pinarus, on the north bank of which Darius was encamped. And here Darius resolved to fight. He threw across the river thirty thousand cavalry and twenty thousand infantry, to insure the undisturbed formation of his main force. His main line was composed of ninety thousand hoplites, of which thirty thousand were Greek in the centre. On the mountain to his left, he posted twenty thousand, to act against the right wing of the Macedonian army. He then recalled the thirty thousand cavalry and twenty thousand infantry, which he had sent [pg 385] across the river, and awaited the onset of Alexander, Darius was in his chariot, in the centre, behind the Grecian hoplites. But the ground was so uneven, that only a part of his army could fight. A large proportion of it were mere spectators.
The great and decisive battle of Issus.
Alexander advanced to the attack. The left-wing was commanded by Parmenio, and the right by himself, on which were placed the Macedonian cavalry. The divisions of the phalanx were in the centre, and the Peloponnesian cavalry and Thracian light infantry on the left. The whole front extended only one and a half mile. Crossing the river rapidly, Alexander, at the head of his cavalry, light infantry, and some divisions of the phalanx, fell suddenly upon the Asiatic hoplites which were stationed on the Persian left. So impetuous and unexpected was the charge, that the troops instantly fled, vigorously pressed by the Macedonian right. Darius, from his chariot, saw the flight of his left wing, and, seized with sudden panic, caused his chariot to be turned, and fled also among the foremost fugitives. In his terror he cast away his bow, shield, and regal mantle. He did not give a single order, nor did he remain a moment after the defeat of his left, as he ought, for he was behind thirty thousand Grecian hoplites, in the centre, but abandoned himself to inglorious flight, and this was the signal for a general flight also of all his troops, who turned and trampled each other down in their efforts to get beyond the reach of the enemy.
The mistakes of the Persians, and the cowardice of Darius.
Thus the battle was lost by the giving way of the Asiatic hoplites on the left, and the flight of Darius in a few minutes after. The Persian right showed some bravery, till Alexander, having completed the rout of the left, turned to attack the Grecian mercenaries in the flank and rear, when all fled in terror. The slaughter of the fugitives was prodigious. The camp of Darius was taken, with his mother, wife, sister, and children. One hundred thousand Persians were slain, not in fight, but in flight, and among them were several eminent [pg 386] satraps and grandees. The Persian hosts were completely dispersed, and Darius did not stop till he had crossed the Euphrates. The booty acquired was immense, in gold, silver, and captives.
Important consequences of the battle.
Such was the decisive battle of Issus, where the cowardice and incompetency of Darius were more marked than the generalship of Alexander himself. No victory was ever followed by more important consequences. It dispersed the Persian hosts, and opened Persia to a victorious enemy, and gave an irresistible prestige to the conqueror. The fall of the empire was rendered probable, and insured successive triumphs to Alexander.
The flight and inaction of Darius.