Gallic War (2.22-2.26)

The army having been marshaled, rather as the nature of the ground and the declivity of the hill and the exigency of the time, than as the method and order of military matters required; while the legions in the different places were withstanding the enemy, some in one quarter, some in another, and the view was obstructed by the very thick hedges intervening, as we have before remarked, neither could proper reserves be posted, nor could the necessary measures be taken in each part, nor could all the commands be issued by one person. Therefore, in such an unfavorable state of affairs, various events of fortune followed.

The soldiers of the ninth and tenth legions, as they had been stationed on the left part of the army, casting their weapons, speedily drove the Atrebates (for that division had been opposed to them,) who were breathless with running and fatigue, and worn out with wounds, from the higher ground into the river; and following them as they were endeavoring to pass it, slew with their swords a great part of them while impeded (therein). They themselves did not hesitate to pass the river; and having advanced to a disadvantageous place, when the battle was renewed, they [nevertheless] again put to flight the enemy, who had returned and were opposing them. In like manner, in another quarter two different legions, the eleventh and the eighth, having routed the Veromandui, with whom they had engaged, were fighting from the higher ground upon the very banks of the river. But, almost the whole camp on the front and on the left side being then exposed, since the twelfth legion was posted in the right wing, and the seventh at no great distance from it, all the Nervii, in a very close body, with Boduognatus, who held the chief command, as their leader, hastened toward that place; and part of them began to surround the legions on their unprotected flank, part to make for the highest point of the encampment.

At the same time our horsemen, and light-armed infantry, who had been with those, who, as I have related, were routed by the first assault of the enemy, as they were betaking themselves into the camp, met the enemy face to face, and again sought flight into another quarter; and the camp-followers who from the Decuman Gate, and from the highest ridge of the hill had seen our men pass the river as victors, when, after going out for the purposes of plundering, they looked back and saw the enemy parading in our camp, committed themselves precipitately to flight; at the same time there arose the cry and shout of those who came with the baggage-train: and they (affrighted), were carried some one way, some another. By all these circumstances the cavalry of the Treviri were much alarmed, (whose reputation for courage is extraordinary among the Gauls, and who had come to Caesar, being sent by their state as auxiliaries), and, when they saw our camp filled with a large number of the enemy, the legions hard pressed and almost held surrounded, the camp-retainers, horsemen, slingers, and Numidians fleeing on all sides divided and scattered, they, despairing of our affairs, hastened home, and related to their state that the Romans were routed and conquered, [and] that the enemy were in possession of their camp and baggage-train.

Caesar proceeded, after encouraging the tenth legion, to the right wing; where he perceived that his men were hard pressed, and that in consequence of the standards of the twelfth legion being collected together in one place, the crowded soldiers were a hinderance to themselves in the fight; that all the centurions of the fourth cohort were slain, and the standard-bearer killed, the standard itself lost, almost all the centurions of the other cohorts either wounded or slain, and among them the chief centurion of the legion P. Sextius Baculus, a very valiant man, who was so exhausted by many and severe wounds, that he was already unable to support himself; he likewise perceived that the rest were slackening their efforts, and that some, deserted by those in the rear, were retiring from the battle and avoiding the weapons; that the enemy [on the other hand] though advancing from the lower ground, were not relaxing in front, and were [at the same time] pressing hard on both flanks; he also perceived that the affair was at a crisis, and that there was not any reserve which could be brought up, having therefore snatched a shield from one of the soldiers in the rear (for he himself had come without a shield), he advanced to the front of the line, and addressing the centurions by name, and encouraging the rest of the soldiers, he ordered them to carry forward the standards, and extend the companies, that they might the more easily use their swords. On his arrival, as hope was brought to the soldiers and their courage restored, while every one for his own part, in the sight of his general, desired to exert his utmost energy, the impetuosity of the enemy was a little checked.

Caesar, when he perceived that the seventh legion, which stood close by him, was also hard pressed by the enemy, directed the tribunes of the soldiers to effect a junction of the legions gradually, and make their charge upon the enemy with a double front; which having been done, since they brought assistance the one to the other, nor feared lest their rear should be surrounded by the enemy, they began to stand their ground more boldly, and to fight more courageously. In the mean time, the soldiers of the two legions which had been in the rear of the army, as a guard for the baggage-train, upon the battle being reported to them, quickened their pace, and were seen by the enemy on the top of the hill; and Titus Labienus, having gained possession of the camp of the enemy, and observed from the higher ground what was going on in our camp, sent the tenth legion as a relief to our men, who, when they had learned from the flight of the horse and the sutlers in what position the affair was, and in how great danger the camp and the legion and the commander were involved, left undone nothing [which tended] to dispatch.