Caesar, having delayed two days in that place, because he had anticipated that, in the natural course of events, such would be the conduct of Vercingetorix, leaves the army under pretense of raising recruits and cavalry: he places Brutus, a young man, in command of these forces;
At Caesar biduum in his locis moratus, quod haec de Vercingetorige usu ventura opinione praeceperat, per causam supplementi equitatusque cogendi ab exercitu discedit; Brutum adulescentem his copiis praeficit;
he gives him instructions that the cavalry should range as extensively as possible in all directions; that he would exert himself not to be absent from the camp longer than three days.
hunc monet, ut in omnes partes equites quam latissime pervagentur: daturum se operam, ne longius triduo ab castris absit.
Having arranged these matters, he marches to Vienna by as long journeys as he can, when his own soldiers did not expect him.
His constitutis rebus suis inopinantibus quam maximis potest itineribus Viennam pervenit.
Finding there a fresh body of cavalry, which he had sent on to that place several days before, marching incessantly night and day, he advanced rapidly through the territory of the Aedui into that of the Lingones, in which two legions were wintering, that, if any plan affecting his own safety should have been organized by the Aedui, he might defeat it by the rapidity of his movements.
Ibi nactus recentem equitatum, quem multis ante diebus eo praemiserat, neque diurno neque nocturno itinere intermisso per fines Aeduorum in Lingones contendit, ubi duae legiones hiemabant, ut, si quid etiam de sua salute ab Aeduis iniretur consili, celeritate praecurreret.
When he arrived there, he sends information to the rest of the legions, and gathers all his army into one place before intelligence of his arrival could be announced to the Arverni.
Eo cum pervenisset, ad reliquas legiones mittit priusque omnes in unum locum cogit quam de eius adventu Arvernis nuntiari posset.
Vercingetorix, on hearing this circumstance, leads back his army into the country of the Bituriges; and after marching from it to Gergovia, a town of the Boii, whom Caesar had settled there after defeating them in the Helvetian war, and had rendered tributary to the Aedui, he determined to attack it.
Hac re cognita Vercingetorix rursus in Bituriges exercitum reducit atque inde profectus Gorgobinam, Boiorum oppidum, quos ibi Helvetico proelio victos Caesar collocaverat Aeduisque attribuerat, oppugnare instituit.