DARIUS MUSTERS A NEW HOST
If Alexander was a gainer in respect to his own operations by the death of the eminent Rhodian [Memnon], he was yet more a gainer by the change of policy which that event induced Darius to adopt. The Persian king resolved to renounce the defensive schemes of Memnon, and to take the offensive against the Macedonians on land. His troops, already summoned from the various parts of the empire, had partially arrived, and were still coming in. Their numbers became greater and greater, amounting at length to a vast and multitudinous host, the total of which is given by some as six hundred thousand men; by others as four hundred thousand infantry and one hundred thousand cavalry.
Phrygian Weapons and Helmet
The spectacle of this showy and imposing mass, in every variety of arms, costume, and language, filled the mind of Darius with confidence; especially as there were among them between twenty thousand and thirty thousand Grecian mercenaries. The Persian courtiers, themselves elate and sanguine, stimulated and exaggerated the same feeling in the king himself, who became confirmed in his persuasion that his enemies could never resist him.
From Sogdiana, Bactria, and India, the contingents had not yet had time to arrive; but most of those between the Persian Gulf and the Caspian Sea had come in—Persians, Medes, Armenians, Derbices, Barcanians, Hyrcanians, Cardaces, etc.; all of whom, mustered in the plains of Mesopotamia, are said to have been counted, like the troops of Xerxes in the plain of Doriscus, by paling off a space capable of containing exactly ten thousand men, and passing all the soldiers through it in succession. Neither Darius himself, nor any of those around him, had ever before seen so overwhelming a manifestation of the Persian imperial force. To an oriental eye, incapable of appreciating the real conditions of military preponderance—accustomed only to the gross and visible computation of numbers and physical strength—the king who marched forth at the head of such an army appeared like a god on earth, certain to trample down all before him just as most Greeks had conceived respecting Xerxes, and by stronger reason Xerxes respecting himself, a century and a half before. Because all this turned out a ruinous mistake the description of the feeling, given in Curtius and Diodorus, is often mistrusted as baseless rhetoric. Yet it is in reality the self-suggested illusion of untaught men, as opposed to trained and scientific judgment.
But though such was the persuasion of orientals, it found no response in the bosom of an intelligent Athenian. Among the Greeks now near Darius, was the Athenian exile Charidemus; who having incurred the implacable enmity of Alexander, had been forced to quit Athens after the Macedonian capture of Thebes, and had fled together with Ephialtes to the Persians. Darius, elate with the apparent omnipotence of his army under review, and hearing but one voice of devoted concurrence from the courtiers around him, asked the opinion of Charidemus, in full expectation of receiving an affirmative reply. So completely were the hopes of Charidemus bound up with the success of Darius, that he would not suppress his convictions, however unpalatable, at a moment when there was yet a possibility that they might prove useful. He replied (with the same frankness as Demaratus had once employed towards Xerxes), that the vast multitude now before him were unfit to cope with the comparatively small number of the invaders. He advised Darius to place no reliance on Asiatics, but to employ his immense treasures in subsidising an increased army of Grecian mercenaries. He tendered his own hearty services either to assist or to command. To Darius, what he said was alike surprising and offensive; in the Persian courtiers, it provoked intolerant wrath. Intoxicated as they all were with the spectacle of their immense muster, it seemed to them a combination of insult with absurdity, to pronounce Asiatics worthless as compared with Macedonians, and to teach the king that his empire could be defended by none but Greeks. They denounced Charidemus as a traitor who wished to acquire the king’s confidence in order to betray him to Alexander. Darius himself, stung with the reply, and still further exasperated by the clamours of his courtiers, seized with his own hands the girdle of Charidemus, and consigned him to the guards for execution. “You will discover too late,” exclaimed the Athenian, “the truth of what I have said. My avenger will soon be upon you.”
Filled as he now was with certain anticipations of success and glory, Darius resolved to assume in person the command of his army, and march down to overwhelm Alexander. From this moment, his land-army became the really important and aggressive force, with which he himself was to act. Herein we note his distinct abandonment of the plans of Memnon—the turning-point of his future fortune. He abandoned them, too, at the precise moment when they might have been most safely and completely executed. In the first place, there was the line of Mount Taurus, barring the entrance of Alexander into Cilicia; a line of defence nearly inexpugnable. Next, even if Alexander had succeeded in forcing this line and mastering Cilicia, there would yet remain the narrow road between Mount Amanus and the sea, called the Amanian Gates, and the Gates of Cilicia and Assyria—and after that, the passes over Mount Amanus itself—all indispensable for Alexander to pass through, and capable of being held, with proper precautions, against the strongest force of attack. A better opportunity, for executing the defensive part of Memnon’s scheme, could not present itself; and he himself must doubtless have reckoned that such advantages would not be thrown away.
The momentous change of policy, on the part of the Persian king, was manifested by the order which he sent to the fleet after receiving intelligence of the death of Memnon. Confirming the appointment of Pharnabazus (made provisionally by the dying Memnon) as admiral, he at the same time despatched Thymodes (son of Mentor and nephew of Memnon) to bring away from the fleet the Grecian mercenaries who served aboard, to be incorporated with the main Persian army. Here was a clear proof that the main stress of offensive operations was henceforward to be transferred from the sea to the land.
It is the more important to note such desertion of policy, on the part of Darius, as the critical turning-point in the Greco-Persian drama—because Arrian and the other historians leave it out of sight, and set before us little except secondary points in the case. Thus, for example, they condemn the imprudence of Darius, for coming to fight Alexander within the narrow space near Issus, instead of waiting for him on the spacious plains beyond Mount Amanus. Now, unquestionably, granting that a general battle was inevitable, this step augmented the chances in favour of the Macedonians. But it was a step upon which no material consequences turned; for the Persian army under Darius was hardly less unfit for a pitched battle in the open plain; as was afterwards proved at Arbela. The real imprudence—the neglect of the Memnonian warning—consisted in fighting the battle at all. Mountains and defiles were the real strength of the Persians, to be held as posts of defence against the invader.