THE BATTLE OF ARBELA
The position of the Persian king near Mesopotamia was chosen with great military skill. It was certain that Alexander on his return from Egypt must march northward along the Syrian coast, before he attacked the central provinces of the Persian empire. A direct eastward march from the lower part of Palestine across the great Syrian desert was then, as now, utterly impracticable. Marching eastward from Syria, Alexander would, on crossing the Euphrates, arrive at the vast Mesopotamian plains. The wealthy capitals of the empire, Babylon, Susa, and Persepolis, would then lie to his south; and if he marched down through Mesopotamia to attack them, Darius might reasonably hope to follow the Macedonians with his immense force of cavalry, and, without even risking a pitched battle, to harass and finally overwhelm them. We may remember that three centuries afterwards a Roman army under Crassus was thus actually destroyed by the oriental archers and horsemen in these very plains; and that the ancestors of the Parthians who thus vanquished the Roman legions, served by thousands under King Darius. If, on the contrary, Alexander should defer his march against Babylon, and first seek an encounter with the Persian army, the country on each side of the Tigris in this latitude was highly advantageous for such an army as Darius commanded; and he had close in his rear the mountainous districts of northern Media, where he himself had in early life been satrap, where he had acquired reputation as a soldier and a general, and where he justly expected to find loyalty to his person, and a safe refuge in case of defeat.
His great antagonist came on across the Euphrates against him, at the head of an army which Arrian, copying from the journals of Macedonian officers, states to have consisted of forty thousand foot, and seven thousand horse. In studying the campaigns of Alexander, we possess the peculiar advantage of deriving our information from two of Alexander’s generals of division, who bore an important part in all his enterprises. In fact, in reading Arrian, we read General Aristobulus and General Ptolemy on the campaigns of the Macedonians; and it is like reading General Jomini or General Foy on the campaigns of the French.
The estimate which we find in Arrian of the strength of Alexander’s army, seems reasonable when we take into account both the losses which he had sustained, and the reinforcements which he had received since he left Europe. Indeed, to Englishmen, who know with what mere handfuls of men their own generals have, at Plassy, at Assaye, at Meeanee, and other Indian battles, routed large hosts of Asiatics, the disparity of numbers that we read of in the victories won by the Macedonians over the Persians presents nothing incredible. The army which Alexander now led, was wholly composed of veteran troops in the highest possible state of equipment and discipline, enthusiastically devoted to their leader, and full of confidence in his military genius and his victorious destiny.
The celebrated Macedonian phalanx formed the main strength of his infantry. 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. The main strength of his cavalry consisted in two chosen corps of cuirassiers, one Macedonian, and one Thessalian, each of which was about fifteen hundred strong. They were provided with long lances and heavy swords, and horse as well as man was fully equipped with defensive armour. Other regiments of regular cavalry were less heavily armed, and there were several bodies of light horsemen, whom Alexander’s conquests in Egypt and Syria had enabled him to mount superbly.
The Persian king availed himself to the utmost of every advantage in his power. He caused a large space of ground to be carefully levelled for the operation of his scythe-armed chariots; and he deposited his military stores in the strong town of Arbela, about twenty miles in his rear. The rhetoricians of after ages have loved to describe Darius Codomannus as a second Xerxes in ostentation and imbecility; but a fair examination of his generalship in this his last campaign, shows that he was worthy of bearing the same name as his great predecessor, the royal son of Hystaspes.
On learning that Darius was with a large army on the left of the Tigris, Alexander hurried forward and crossed that river without opposition. He was at first unable to procure any certain intelligence of the precise position of the enemy, and after giving his army a short interval of rest, he marched for four days down the left bank of the river. A moralist may pause upon the fact, that Alexander must in this march have passed within a few miles of the remains of Nineveh, the great city of the primeval conquerors of the human race. Neither the Macedonian king nor any of his followers knew what those vast mounds had once been. They had already become nameless masses of grass-grown ruins; and it is only within the last century that the intellectual energy of Layard has rescued Nineveh from its long centuries of oblivion.
On the fourth day of Alexander’s southward march, his advanced guard reported that a body of the enemy’s cavalry was in sight. He instantly formed his army in order for battle, and directing them to advance steadily, he rode forward at the head of some squadrons of cavalry, and charged the Persian horse whom he found before him. This was a mere reconnoitring party, and they broke and fled immediately; but the Macedonians made some prisoners, and from them Alexander found that Darius was posted only a few miles off, and learned the strength of the army that he had with him. On receiving this news, Alexander halted, and gave his men repose for four days, so that they should go into action fresh and vigorous. He also fortified his camp, and deposited in it all his military stores, and all his sick and disabled soldiers; intending to advance upon the enemy with the serviceable part of his army perfectly unencumbered. After this halt, he moved forward, while it was yet dark, with the intention of reaching the enemy, and attacking them at break of day. About halfway between the camps there were some undulations of the ground, which concealed the two armies from each other’s view. But, on Alexander arriving at their summit, he saw by the early light the Persian host arrayed before him; and he probably also observed traces of some engineering operation having been carried on along part of the ground in front of them. Not knowing that these marks had been caused by the Persians having levelled the ground for the free use of their war-chariots, Alexander suspected that hidden pitfalls had been prepared with a view of disordering the approach of his cavalry. He summoned a council of war forthwith. Some of the officers were for attacking instantly at all hazards, but the more prudent opinion of Parmenion prevailed, and it was determined not to advance farther till the battle-ground had been carefully surveyed.
Greek Soldier, Time of Alexander the Great
Alexander halted his army on the heights; and taking with him some light-armed infantry and some cavalry, he passed part of the day in reconnoitring the enemy, and observing the nature of the ground which he had to fight on. Darius wisely refrained from moving from his position to attack the Macedonians on the eminences which they occupied, and the two armies remained until night without molesting each other. On Alexander’s return to his headquarters, he summoned his generals and superior officers together, and telling them that he well knew that their zeal wanted no exhortation, he besought them to do their utmost in encouraging and instructing those whom each commanded, to do their best in the next day’s battle. They were to remind them that they were now not going to fight for a province, as they had hitherto fought, but they were about to decide by their swords the dominion of all Asia. Each officer ought to impress this upon his subalterns, and they should urge it on their men. Their natural courage required no long words to excite its ardour; but they should be reminded of the paramount importance of steadiness in action. The silence in the ranks must be unbroken as long as silence was proper; but when the time came for the charge, the shout and the cheer must be full of terror for the foe. The officers were to be alert in receiving and communicating orders; and every one was to act as if he felt that the whole result of the battle depended on his own single good conduct.
Having thus briefly instructed his generals, Alexander ordered that the army should sup, and take their rest for the night. Darkness had closed over the tents of the Macedonians, when Alexander’s veteran general, Parmenion, came to him, and proposed that they should make a night attack on the Persians. The king is said to have answered, that he scorned to filch a victory, and that Alexander must conquer openly and fairly. Arrian justly remarks that Alexander’s resolution was as wise as it was spirited. Besides the confusion and uncertainty which are inseparable from night engagements, the value of Alexander’s victory would have been impaired, if gained under circumstances which might supply the enemy with any excuse for his defeat, and encourage him to renew the contest. It was necessary for Alexander not only to beat Darius, but to gain such a victory as should leave his rival without apology for defeat, and without hope of recovery.
The Persians, in fact, expected, and were prepared to meet, a night attack. Such was the apprehension that Darius entertained of it, that he formed his troops at evening in order of battle, and kept them under arms all night. The effect of this was, that the morning found them jaded and dispirited, while it brought their adversaries all fresh and vigorous against them.
The written order of battle, which Darius himself caused to be drawn up, fell into the hands of the Macedonians after the engagement, and Aristobulus copied it into his journal. We thus possess, through Arrian, unusually authentic information as to the composition and arrangement of the Persian army. On the extreme left were the Bactrian, Dahean, and Arachosian cavalry. Next to these Darius placed the troops from Persia proper, both horse and foot. Then came the Susians, and next to these the Cadusians. These forces made up the left wing. Darius’ own station was in the centre. This was composed of the Indians, the Carians, the Mardian archers, and the division of Persians who were distinguished by the golden apples that formed knobs of their spears. Here also were stationed the bodyguard of the Persian nobility. Besides these, there were in the centre, formed in deep order, the Uxian and Babylonian troops, and the soldiers from the Red Sea. The brigade of Greek mercenaries, whom Darius had in his service, and who were alone considered fit to stand in the charge of the Macedonian phalanx, was drawn up on either side of the royal chariot. The right wing was composed of the Cœlo-Syrians and Mesopotamians, the Medes, the Parthians, the Sacians, the Tapurians, Hyrcanians, Albanians, and Sacesinæ. In advance of the line on the left wing were placed the Scythian cavalry, with a thousand of the Bactrian horse, and a hundred scythe-armed chariots. The elephants and the fifty scythe-armed chariots were ranged in front of the centre; and fifty more chariots, with the Armenian and Cappadocian cavalry, were drawn up in advance of the right wing.
Thus arrayed, the great host of King Darius passed the night, that to many thousands of them was the last of their existence. The morning of the first of October dawned slowly to their wearied watching, and they could hear the note of the Macedonian trumpet sounding to arms, and could see King Alexander’s forces descend from their tents on the heights, and form in order of battle on the plain.
There was deep need of skill, as well as of valour, on Alexander’s side; and few battle-fields have witnessed more consummate generalship than was now displayed by the Macedonian king.[24] There were no natural barriers by which he could protect his flanks; and not only was he certain to be overlapped on either wing by the vast lines of the Persian army, but there was imminent risk of their circling round him and charging him in the rear, while he advanced against their centre. He formed, therefore, a second or reserve line, which was to wheel round, if required, or to detach troops to either flank, as the enemy’s movements might necessitate: and thus with their whole army ready at any moment to be thrown into one vast hollow square, the Macedonians advanced in two lines against the enemy, Alexander himself leading on the right wing, and the renowned phalanx forming the centre, while Parmenion commanded on the left.
Such was the general nature of the disposition which Alexander made of his army. But we have in Arrian the details of the position of each brigade and regiment; and as we know that these details were taken from the journals of Macedonian generals, it is interesting to examine them, and to read the names and stations of King Alexander’s generals and colonels in this the greatest of his battles.
The eight troops of the royal horse-guards formed the right of Alexander’s line. Their captains were Clitus (whose regiment was on the extreme right, the post of peculiar danger), Glaucias, Ariston, Sopolis, Heraclides, Demetrias, Meleager, and Hagelochus. Philotas was general of the whole division. Then came the shield-bearing infantry; Nicanor was their general. Then came the phalanx, in six brigades. Cœnus’ brigade was on the right, and nearest to the shield-bearers; next to this stood the brigade of Perdiccas, then Meleager’s, then Polysperchon’s; and then the brigade of Amyntas, but which was now commanded by Simmias, as Amyntas had been sent to Macedonia to levy recruits. Then came the infantry of the left wing, under the command of Craterus. Next to Craterus’ infantry was placed the cavalry regiments of the allies, with Erigyius for their general. The Thessalian cavalry, commanded by Philippus, were next, and held the extreme left of the whole army. The whole left wing was entrusted to the command of Parmenion, who had round his person the Pharsalian troop of cavalry, which was the strongest and best amid all the Thessalian horse-regiments.
The centre of the second line was occupied by a body of Phalangite infantry, formed of companies, which were drafted for this purpose from each of the brigades of their phalanx. The officers in command of this corps were ordered to be ready to face about, if the enemy should succeed in gaining the rear of the army. On the right of this reserve of infantry, in the second line, behind the royal horse-guards, Alexander placed half the Agrianian light-armed infantry under Attalus, and with them Brison’s body of Macedonian archers, and Cleander’s regiment of foot. He also placed in this part of his army Menidas’ squadron of cavalry, and Aretes’ and Ariston’s light horse. Menidas was ordered to watch if the enemy’s cavalry tried to turn the flank, and if they did so, to charge them before they wheeled completely round, and so take them in flank themselves. A similar force was arranged on the left of the second line for the same purpose. The Thracian infantry of Sitalces was placed there, and Cœranus’ regiment of the cavalry of the Greek allies, and Agathon’s troops of the Odrysian irregular horse. The extreme left of the second line in this quarter was held by Andromachus’ cavalry. A division of Thracian infantry was left in guard of the camp. In advance of the right wing and centre was scattered a number of light-armed troops, of javelin-men and bowmen, with the intention of warding off the charge of the armed chariots.[25]
Conspicuous by the brilliancy of his armour, and by the chosen band of officers who were round his person, Alexander took his own station, as his custom was, in the right wing, at the head of his cavalry; and when all the arrangements for the battle were complete, and his generals were fully instructed how to act in each probable emergency, he began to lead his men towards the enemy.
It was ever his custom to expose his life freely in battle, and to emulate the personal prowess of his great ancestor, Achilles. Perhaps in the bold enterprise of conquering Persia, it was politic for Alexander to raise his army’s daring to the utmost by the example of his own heroic valour; and, in his subsequent campaigns, the love of the excitement, of “the rapture of the strife,” may have made him, like Murat, continue from choice a custom which he commenced from duty. But he never suffered the ardour of the soldier to make him lose the coolness of the general; and at Arbela, in particular, he showed that he could act up to his favourite Homeric maxim of being
Ἀμφότερον, βασιλεύς τ’ ἀγαθὸς κρατερός τ’ αἰχμητής.[26]
Great reliance had been placed by the Persian king on the effects of the scythe-bearing chariots. It was designed to launch these against the Macedonian phalanx, and to follow them up by a heavy charge of cavalry, which it was hoped would find the ranks of the spearmen disordered by the rush of the chariots, and easily destroy this most formidable part of Alexander’s force. In front, therefore, of the Persian centre, where Darius took his station, and which it was supposed the phalanx would attack, the ground had been carefully levelled and smoothed, so as to allow the chariots to charge over it with their full sweep and speed. As the Macedonian army approached the Persian, Alexander found that the front of his whole line barely equalled the front of the Persian centre, so that he was outflanked on his right by the entire left wing of the enemy, and by their entire right wing on his left. His tactics were to assail some one point of the hostile army, and gain a decisive advantage, while he refused, as far as possible, the encounter along the rest of the line. He therefore inclined his order of march to the right, so as to enable his right wing and centre to come into collision with the enemy on as favourable terms as possible, though the manœuvre might in some respects compromise his left.
The effect of this oblique movement was to bring the phalanx and his own wing nearly beyond the limits of the ground which the Persians had prepared for the operations of the chariots; and Darius, fearing to lose the benefit of this arm against the most important parts of the Macedonian force, ordered the Scythian and Bactrian cavalry, who were drawn up on his extreme left, to charge upon Alexander’s right wing, and check its further lateral progress. Against these assailants Alexander sent from his second line Menidas’ cavalry. As these proved too few to make head against the enemy, he ordered Ariston also from the second line with his light horse, and Cleander with his foot, in support of Menidas. The Bactrians and Scythians now began to give way, but Darius reinforced them by the mass of Bactrian cavalry from his main line, and an obstinate cavalry fight now took place. The Bactrians and Scythians were numerous, and were better armed than the horsemen under Menidas and Ariston; and the loss at first was heaviest on the Macedonian side. But still the European cavalry stood the charge of the Asiatics, and at last, by their superior discipline, and by acting in squadrons that supported each other instead of fighting in a confused mass like the barbarians, the Macedonians broke their adversaries, and drove them off the field.
Scythe-bearing Chariot
(Showing the Attachment of the Scythe to the Axle)
Darius now directed the scythe-armed chariots to be driven against Alexander’s horse-guards and the phalanx; and these formidable vehicles were accordingly sent rattling across the plain, against the Macedonian line. When we remember the alarm which the war-chariots of the Britons created among Cæsar’s legions, we shall not be prone to deride this arm of ancient warfare as always useless. The object of the chariots was to create unsteadiness in the ranks against which they were driven, and squadrons of cavalry followed close upon them, to profit by such disorder. But the Asiatic chariots were rendered ineffective at Arbela by the light-armed troops whom Alexander had specially appointed for the service, and who, wounding the horses and drivers with their missile weapons, and running alongside so as to cut the traces or seize the reins, marred the intended charge; and the few chariots that reached the phalanx passed harmlessly through the intervals which the spearmen opened for them, and were easily captured in the rear.
A mass of the Asiatic cavalry was now, for the second time, collected against Alexander’s extreme right, and moved round it, with the view of gaining the flank of his army. At the critical moment, Aretes, with his horsemen from Alexander’s second line, dashed on the Persian squadrons when their own flanks were exposed by this evolution. While Alexander thus met and baffled all the flanking attacks of the enemy with troops brought up from his second line, he kept his own horse-guards and the rest of the front line of his wing fresh, and ready to take advantage of the first opportunity for striking a decisive blow. This soon came. A large body of horse, who were posted on the Persian left wing nearest to the centre, quitted their station, and rode off to help their comrades in the cavalry fight that still was going on at the extreme right of Alexander’s wing against the detachments from his second line. This made a huge gap in the Persian array, and into this space Alexander instantly dashed with his guard; and then pressing towards his left, he soon began to make havoc in the left flank of the Persian centre. The shield-bearing infantry now charged also among the reeling masses of the Asiatics; and five of the brigades of the phalanx, with the irresistible might of their sarissas, bore down the Greek mercenaries of Darius, and dug their way through the Persian centre. In the early part of the battle, Darius had shown skill and energy; and he now for some time encouraged his men, by voice and example, to keep firm. But the lances of Alexander’s cavalry and the pikes of the phalanx now gleamed nearer and nearer to him. His charioteer was struck down by a javelin at his side; and at last Darius’ nerve failed him; and, descending from his chariot, he mounted on a fleet horse and galloped from the plain, regardless of the state of the battle in other parts of the field, where matters were going on much more favourably for his cause.
Alexander’s operations with his right and centre had exposed his left to an immensely preponderating force of the enemy. Parmenion kept out of action as long as possible; but Mazæus, who commanded the Persian right wing, advanced against him, completely outflanked him, and pressed him severely with reiterated charges by superior numbers. Seeing the distress of Parmenion’s wing, Simmias, who commanded the sixth brigade of the phalanx, which was next to the left wing, did not advance with the other brigades in the great charge upon the Persian centre, but kept back to cover Parmenion’s troops on their right flank; as otherwise they would have been completely surrounded and cut off from the rest of the Macedonian army. By so doing, Simmias had unavoidably opened a gap in the Macedonian left centre; and a large column of Indian and Persian horse, from the Persian right centre, had galloped forward through this interval, and right through the troops of the Macedonian second line. Instead of then wheeling round upon Parmenion, or upon the rear of Alexander’s conquering wing, the Indian and Persian cavalry rode straight on to the Macedonian camp, overpowered the Thracians who were left in charge of it, and began to plunder. This was stopped by the phalangite troops of the second line, who, after the enemy’s horsemen had rushed by them, faced about, countermarched upon the camp, killed many of the Indians and Persians in the act of plundering, and forced the rest to ride off again. Just at this crisis, Alexander had been recalled from his pursuit of Darius, by tidings of the distress of Parmenion, and of his inability to bear up any longer against the hot attacks of Mazæus. Taking his horse-guards with him, Alexander rode towards the part of the field where his left wing was fighting; but on his way thither he encountered the Persian and Indian cavalry on their return from his camp.
These men now saw that their only chance of safety was to cut their way through; and in one huge column they charged desperately upon the Macedonians. There was here a close hand-to-hand fight, which lasted some time, and sixty of the royal horse-guards fell, and three generals, who fought close to Alexander’s side, were wounded. At length the Macedonian discipline and valour again prevailed, and a large number of the Persian and Indian horsemen were cut down; some few only succeeded in breaking through and riding away. Relieved of these obstinate enemies, Alexander again formed his horse-guards, and led them towards Parmenion; but by this time that general also was victorious. Probably the news of Darius’ flight had reached Mazæus, and had damped the ardour of the Persian right wing; while the tidings of their comrades’ success must have proportionally encouraged the Macedonian forces under Parmenion. His Thessalian cavalry particularly distinguished themselves by their gallantry and persevering good conduct; and by the time that Alexander had ridden up to Parmenion, the whole Persian army was in full flight from the field.[27]
It was of the deepest importance to Alexander to secure the person of Darius, and he now urged on the pursuit. The Upper Zab was between the field of battle and the city of Arbela, whither the fugitives directed their course, and the passage of this river was even more destructive to the Persians than the swords and spears of the Macedonians had been in the engagement. The narrow bridge was soon choked up by the flying thousands who rushed towards it, and vast numbers of the Persians threw themselves, or were hurried by others, into the rapid stream, and perished in its waters. Darius had crossed it, and had ridden on through Arbela without halting. Alexander reached that city on the next day, and made himself master of all Darius’ treasure and stores; but the Persian king had fled too fast for his conqueror.
A few days after the battle Alexander entered Babylon, “the oldest seat of earthly empire” then in existence, as its acknowledged lord and master. There were yet some campaigns of his brief and bright career to be accomplished. Central Asia was yet to witness the march of his phalanx. He was yet to effect that conquest of Afghanistan in which England since has failed. His generalship, as well as his valour, were yet to be signalised on the banks of the Hydaspes, and the field of Chillianwallah; and he was yet to precede the queen of England in annexing the Punjab to the dominions of a European sovereign. But the crisis of his career was reached; the great object of his mission was accomplished; and the ancient Persian empire, which once menaced all the nations of the earth with subjection, was irreparably crushed, when Alexander had won his crowning victory at Arbela.[j]