Battle Studies; Ancient and Modern Battle

by Charles Jean Jacques Joseph Ardant du Picq

CHAPTER IV

ANALYSIS OF THE BATTLE OF PHARSALUS, AND SOME CHARACTERISTIC EXAMPLES

Here is Caesar's account of the battle of Pharsalus.

"As Caesar approached Pompey's camp, he noted that Pompey's army was placed in the following order:

"On the left wing were the 2nd and 3rd Legions which Caesar had sent to Pompey at the commencement of the operation, pursuant to a decree of the Senate, and which Pompey had kept. Scipio occupied the center with the legions from Syria. The legion from Cilicia was placed on the right wing together with the Spanish cohorts of Afranius. Pompey regarded the troops already mentioned as the most reliable of his army. Between them, that is, between the center and the wings, he had distributed the remainder, consisting of one hundred and ten complete cohorts in line. These were made up of forty-five thousand men, two thousand of whom were veterans, previously rewarded for their services, who had come to join him. He had scattered them throughout the whole line of battle. Seven cohorts had been left to guard his camp and the neighboring forts. His right wing rested on a stream with inaccessible banks; and, for that reason, he had placed all his seven thousand cavalry, [14] his archers and his slingers (forty-two hundred men) on the left wing.

"Caesar, keeping his battle order, [15] had placed the 10th Legion on the right wing, and on the left, the 9th, which was much weakened by the combats of Dyrrachium. To the latter he added the 8th in order to form something like a full legion from the two, and ordered them to support one another. He had eighty very completely organized cohorts in line, approximately twenty-two thousand men. Two cohorts had been left to guard the camp. Caesar had entrusted the command of the left wing to Anthony, that of the right to P. Sylla, and of the center to C. Domitius. He placed himself in front of Pompey. But when he saw the disposition of the opposing army, he feared that his right wing was going to be enveloped by Pompey's numerous cavalry. He therefore withdrew immediately from his third line a cohort from each legion (six cohorts), in order to form a fourth line, placed it to receive Pompey's cavalry and showed it what it had to do. Then he explained fully to these cohorts that the success of the day depended on their valor. At the same time he ordered the entire army, and in particular the third line, not to move without his command, reserving to himself authority to give the signal by means of the standard when he thought it opportune.

"Caesar then went through his lines to exhort his men to do well, and seeing them full of ardor, had the signal given.

"Between the two armies there was only enough space to give each the necessary distance for the charge. But Pompey had given his men orders to await the charge without stirring, and to let Caesar's army break its ranks upon them. He did this, they say, on the advice of C. Triarius, as a method of meeting the force of the first dash of Caesar's men. He hoped that their battle order would be broken up and his own soldiers, well disposed in ranks, would have to fight with sword in hand only men in disorder. He thought that this formation would best protect his troops from the force of the fall of heavy javelins. At the same time he hoped that Caesar's soldiers charging at the run would be out of breath and overcome with fatigue at the moment of contact. Pompey's immobility was an error because there is in every one an animation, a natural ardor that is instilled by the onset to the combat. Generals ought not to check but to encourage this ardor. It was for this reason that, in olden times, troops charged with loud shouts, all trumpets sounding, in order to frighten the enemy and encourage themselves.

"In the meanwhile, our soldiers, at the given signal advanced with javelins in hand; but having noticed that Pompey's soldiers were not running towards them, and taught by experience and trained by previous battles, they slowed down and stopped in the midst of their run, in order not to arrive out of breath and worn out. Some moments after, having taken up their run again, they launched their javelins, and immediately afterwards, according to Caesar's order drew their swords. The Pompeians conducted themselves perfectly. They received the darts courageously; they did not stir before the dash of the legions; they preserved their lines, and, having dispatched their javelins, drew their swords.