§8.11.1Caesar, cum animadverteret hostem complures dies castris palude et loci natura munitis se tenere neque oppugnari castra eorum sine dimicatione perniciosa nec locum munitionibus claudi nisi a maiore exercitu posse, litteras ad Trebonium mittit, ut quam celerrime posset legionem XIII, quae cum T. Sextio legato in Biturigibus hiemabat, arcesseret atque ita cum tribus legionibus magnis itineribus ad se veniret; §8.11.2ipse equites in vicem Remorum ac Lingonum reliquarumque civitatum, quorum magnum numerum evocaverat, praesidio pabulationibus mittit, qui subitas hostium incursiones sustinerent.
Caesar, when he observed that the enemy kept themselves for several days within their camp, which was fortified by a marsh and by the natural strength of the site, and that their camp could not be assaulted without a destructive conflict, nor could the position be enclosed by fortifications except by a larger army, sent a letter to Trebonius, directing him to summon as quickly as he could the Thirteenth legion, which was wintering in the territory of the Bituriges under the lieutenant T. Sextius, and so to come to him by forced marches with three legions; he himself sent the cavalry of the Remi, the Lingones, and the remaining states, of whom he had called out a large number, in turn as a guard for the foraging parties, to withstand any sudden incursions of the enemy.