Gallic War (2.32-3.1)

To these things Caesar replied, "That he, in accordance with his custom, rather than owing to their desert, should spare the state, if they should surrender themselves before the battering-ram should touch the wall; but that there was no condition of surrender, except upon their arms being delivered up; that he should do to them that which he had done in the case of the Nervii, and would command their neighbors not to offer any injury to those who had surrendered to the Roman people." The matter being reported to their countrymen, they said that they would execute his commands. Having cast a very large quantity of their arms from the wall into the trench that was before the town, so that the heaps of arms almost equalled the top of the wall and the rampart, and nevertheless having retained and concealed, as we afterward discovered, about a third part in the town, the gates were opened, and they enjoyed peace for that day.

Toward evening Caesar ordered the gates to be shut, and the soldiers to go out of the town, lest the towns-people should receive any injury from them by night. They [the Aduatuci], by a design before entered into, as we afterwards understood, because they believed that, as a surrender had been made, our men would dismiss their guards, or at least would keep watch less carefully, partly with those arms which they had retained and concealed, partly with shields made of bark or interwoven wickers, which they had hastily covered over with skins, (as the shortness of time required) in the third watch, suddenly made a sally from the town with all their forces [in that direction] in which the ascent to our fortifications seemed the least difficult. The signal having been immediately given by fires, as Caesar had previously commended, a rush was made thither [i. e. by the Roman soldiers] from the nearest fort; and the battle was fought by the enemy as vigorously as it ought to be fought by brave men, in the last hope of safety, in a disadvantageous place, and against those who were throwing their weapons from a rampart and from towers; since all hope of safety depended on their courage alone. About 4,000 of the men having been slain, the rest were forced back into the town. The day after, Caesar, after breaking open the gates, which there was no one then to defend, and sending in our soldiers, sold the whole spoil of that town. The number of 53,000 persons was reported to him by those who had bought them.

At the same time he was informed by P. Crassus, whom he had sent with one legion against the Veneti, the Unelli, the Osismii, the Curiosolitae, the Sesuvii, the Aulerci, and the Rhedones, which are maritime states, and touch upon the [Atlantic] ocean, that all these nations were brought under the dominion and power of the Roman people.

These things being achieved, [and] all Gaul being subdued, so high an opinion of this war was spread among the barbarians, that embassadors were sent to Caesar by those nations who dwelt beyond the Rhine , to promise that they would give hostages and execute his commands. Which embassies Caesar, because he was hastening into Italy and Illyricum , ordered to return to him at the beginning of the following summer. He himself, having led his legions into winter quarters among the Carnutes, the Andes, and the Turones , which states were close to those regions in which he had waged war, set out for Italy; and a thanksgiving of fifteen days was decreed for those achievements, upon receiving Caesar's letter; [an honor] which before that time had been conferred on none.

When Caesar was setting out for Italy, he sent Servius Galba with the twelfth legion and part of the cavalry, against the Nantuates, the Veragri, and Seduni, who extend from the territories of the Allobroges, and the lake of Geneva , and the River Rhone to the top of the Alps. The reason for sending him was, that he desired that the pass along the Alps , through which [the Roman] merchants had been accustomed to travel with great danger, and under great imposts, should be opened. He permitted him, if he thought it necessary, to station the legion in these places, for the purpose of wintering. Galba having fought some successful battles and stormed several of their forts, upon embassadors being sent to him from all parts and hostages given and a peace concluded, determined to station two cohorts among the Nantuates, and to winter in person with the other cohorts of that legion in a village of the Veragri, which is called Octodurus; and this village being situated in a valley, with a small plain annexed to it, is bounded on all sides by very high mountains. As this village was divided into two parts by a river, he granted one part of it to the Gauls, and assigned the other, which had been left by them unoccupied, to the cohorts to winter in. He fortified this [latter] part with a rampart and a ditch.