De Bello Gallico 7.34

7.34.1Hōc dēcrētō interpositō cohortātus Aeduōs, ut contrōversiārum ac dissēnsiōnis oblīvīscerentur atque omnibus omissīs hīs rēbus huic bellō servīrent eaque quae meruissent praemia ab sē dēvictā Galliā exspectārent equitātumque omnem et peditum mīlia decem sibi celeriter mitterent, quae in praesidiīs reī frūmentāriae causā dispōneret, exercitum in duās partēs dīvīsit: quattuor legiōnēs in Senonēs Parīsiōsque Labiēnō dūcendās dedit, sex ipse in Arvernōs ad oppidum Gergoviam secundum flūmen Elaver dūxit;

After making this decision, he urged the Aedui to forget their disputes and quarrels and, setting all these things aside, to devote themselves to this war, and to expect from him the rewards they had earned once Gaul was conquered, and to send him quickly all their cavalry and ten thousand infantry, whom he could post in garrisons to secure the grain supply; then he divided the army into two parts: he gave four legions to Labienus to lead against the Senones and Parisii, and he himself led six into the territory of the Arverni towards the town of Gergovia, along the river Elaver;

Note. quae … dispōneret: a relative clause of purpose, 'to post in garrisons'. Labiēnō dūcendās dedit: 'gave to Labienus to lead', a gerundive of purpose with dō.

7.34.2equitātus partem illī attribuit, partem sibi relīquit.

part of the cavalry he assigned to Labienus, part he kept for himself.

7.34.3Quā rē cognitā Vercingetorīx omnibus interruptīs eius flūminis pontibus ab alterā flūminis parte iter facere coepit.

When he learned of this, Vercingetorix broke down all the bridges over that river and began to march along the other bank of the river.