There still remained, however, a force to be dealt with which, had it been properly handled, might have been found a serious difficulty for the conquerors. The infantry, as has been said, was posted in reserve, and of this force not less than a half, numbering as many as ten thousand, consisted of Greek mercenaries. These had remained in absolute inaction, idly watching the struggle on the level ground below. They had no responsible leaders; no orders had been issued to them. The Persian generals, confident in the strength of their special arm, the cavalry, neglected to make any use of this invaluable force. And yet they might have known what ten thousand Greeks, well led, could do! Alexander came up and charged the unprotected flank of the Greek force. "He had the defects of his virtues," and was too eager in "drinking the delight of battle." His charger—not the famous Bucephalus, which had fallen lame, but another horse—was killed under him. The light infantry also delivered an attack, but the mercenaries still held their ground. But when the phalanx came up, their strength or their courage failed. The front ranks were crushed by the advance of the ponderous machine, and the rest first wavered, then broke up in hopeless confusion. Not less than half of their number were killed in their places or in the attempt to escape. The rest were either admitted to quarter, or contrived to make their way to some place of safety.
FOOTNOTES:
[13] Cambyses, in a fit of frantic jealousy—so the story ran—had put his brother Smerdis to death. Cambyses died in Egypt. The magi, Median soothsayers and priests, contrived that one of their number should personate the murdered prince. After he had occupied the Persian throne for a few months, seven nobles conspired against him and slew him. One of the seven, Darius, became king; the others were rewarded by perpetual immunity from taxes, for themselves and their descendants, and other privileges.
II
THE IRRESISTIBLE PHALANX
The eighteen months that followed the battle of the Granicus Alexander spent in Asia Minor. A few strong places resisted him, but on the whole he met with little opposition. On the other hand, he did not move very quickly. At Gordium, in Phrygia, he gave his army a long rest, and at Tarsus, in Cilicia, he was detained against his will by a severe illness, contracted, it was said, by bathing in the ice-cold waters of the Cydnus. Meanwhile Darius had been gathering together from all parts of the Empire a vast army which would be sure, he thought, to crush the invader. So confident did he feel that he did not attempt to check Alexander's advance. He left the strong passes into Cilicia undefended. He did the same with the passes from Cilicia into Syria. He desired nothing better than that the enemy should come to close quarters with him. His original plan was to wait for the Macedonian army at a place named Sochi, where there was a great expanse of level ground. Then he began to fear that Alexander might after all escape him. He left Sochi, and marched by one of the passes of Mons Amanus (Sáwur Dagh) to Issus, where he would be in the rear of the enemy, and so be able to cut off the retreat which he believed would be attempted. Alexander, who had in the highest degree the faculty of guessing what his antagonist was thinking, saw his advantage. At Issus, Darius could not make use of his numbers, and so might be attacked with good hope of success. He made a night march, recrossed into Cilicia, and fought at Issus the second of his great battles.
Darius took up his position on the north bank of the River Pinarus (Deli Tschai). The centre of his line of battle was composed of 90,000 heavy-armed infantry, drawn up in three bodies of 30,000 each. One of these consisted of Greek mercenaries, and occupied the middle place; on either side were the other two—Asiatics armed in Greek fashion. His own place was behind the Greeks. It was in them that he really trusted, though he had violently resented the suggestion when it was made by another. Some weeks before, when reviewing the army with which he was about to encounter Alexander, he had asked for the opinion of Charidemus, an Athenian exile, who was in attendance on him. Charidemus was bidden to speak his mind freely, and he was imprudent enough to take the king at his word. The substance of his advice to the king was not to trust Asiatics, but to spend his accumulated treasure in hiring Greeks. Darius was deeply offended, and the great nobles about him were furious with rage. Charidemus was put to death, but his advice must have been followed. The cavalry was massed on the right wing—that end of the line which was nearest to the sea, for there alone was there any ground suitable for their action. On the left wing, reaching far up the mountain-side, were twenty thousand light-armed infantry, who were to throw themselves on the flank of the Macedonians as soon as these should attempt to cross the river. Behind this line of battle, numbering, it is probable, not less than 120,000 men, stood a mixed multitude, swept together from all the provinces of the vast Persian Empire. This mass of combatants, if combatants they can be called, already unwieldy, received the addition of 50,000 troops, who had been posted on the southern bank of the river to cover the operation of forming the Persian line, and who were brought back when the formation was completed. The ground had been over-crowded before, and this addition to the numbers of the second line only made it more hopelessly unmanageable.
Alexander put his light infantry on the extreme right of his line, opposite, it will be remembered, to a similar force in the Persian array. Here also was the cavalry regiment of the "Companions," and with them some Thessalian horse. The main line was composed of the phalanx in five divisions, the fifth, on the extreme left, being close to the sea, which was little more than a mile and a half from the foot of the mountains—so narrow was the space which Darius had chosen for a battlefield. He could have done nothing better calculated to destroy any advantage that might have been given by his vast superiority in numbers. On the left were some squadrons of Greek cavalry, and bodies of light-armed troops from Crete and Thrace.
On coming in sight of the enemy Alexander made some changes in the disposition of his forces. The most important of these was to transfer some light infantry, cavalry, and archers to act against the 20,000 Persians who had been so placed as to threaten his right flank. It was a wise precaution, but, as a matter of fact, it was not needed. The Persians made no move, and Alexander soon perceived that they might be safely neglected. He left a few hundred cavalry to watch them, and placed the rest of the force destined for this service in his main line.
A brief time was allowed for rest when the river was reached. It was well, too, to wait for a possible forward movement on the part of the Persians. The confidence that had prompted the march to Issus might also prompt an attack. But the Persian line remained in its place, and Alexander crossed the stream. He had with him his light infantry, not slingers and archers, it should be explained, but regular soldiers, with armour and weapons so modified as to enable them to move quickly, the "Companions," and two divisions of the phalanx. The phalanx was drawn up in companies each sixteen deep. All the soldiers were armed with a pike (sarissa), which was twenty-one feet in length. The pikes of the front rank projected fifteen feet, the other end being weighted so that the weapon could be held without difficulty. The pikes of the second rank projected twelve feet, of the third, nine, of the fourth, six, of the fifth, three. The other ranks held their pikes in a slanting direction over the shoulders of those who stood in front. Alexander led the attack, as usual, in person. The Macedonians, moving as quickly as the phalanx could go, fell upon the Asiatic heavy-armed, who occupied the left division of the main Persian line. They were mainly Carduchi, the Kurds of to-day, better hands, it would seem, then as now, at plundering than at fighting. The Carduchi gave way, not waiting for the Macedonians to come to close quarters with them. Their flight endangered the safety of the king, or, rather, the king himself believed that it was endangered. He bade his charioteer turn the horses' heads and fly. As long as the ground allowed he kept to the chariot; when it became too rough he sprang upon a horse, and fled in such haste that he threw away his royal mantle, his bow, and his shield. The mixed multitude that stood behind the main line of Persian battle, as soon as they saw the king quit the field, fled, or, rather, attempted to fly. But, so narrow was the space in which they had been crowded together, they could scarcely move. A scene of frightful terror and confusion followed. The fugitives struggled fiercely with each other in the frantic attempt to escape. Had they shown as much energy in resisting the enemy as in thrusting aside and trampling down their friends, they might have changed the fortune of the day. In less than half an hour from the time when Alexander crossed the Pinarus the left wing of the Persian host was a hopeless mass of confusion.