After this had happened several times, Caesar discovered from a certain prisoner, that Correus, the general of the Bellovaci, had selected six thousand of his bravest foot and a thousand horse, with which he designed to lie in ambush in a place to which he suspected the Romans would send to look for forage, on account of the abundance of corn and grass.
Quod cum crebrius accideret, ex captivo quodam comperit Caesar Correum, Bellovacorum ducem, fortissimorum milia sex peditum delegisse equitesque ex omni numero mille, quos in insidiis eo loco collocaret, quem in locum propter copiam frumenti ac pabuli Romanos missuros suspicaretur.
Upon receiving information of their design Caesar drew out more legions than he usually did, and sent forward his cavalry as usual, to protect the foragers. With these he intermixed a guard of light infantry, and himself advanced with the legions as fast as he could.
Quo cognito consilio legiones plures quam solebat educit equitatumque, qua consuetudine pabulatoribus mittere praesidio consuerat, praemittit: huic interponit auxilia levis armaturae; ipse cum legionibus quam potest maxime appropinquat.