Julius Caesar Gallic War 8.46

Caesar, being informed of this, and perceiving that he had met with good success in all parts of Gaul, and reflecting that, in former campaigns [Celtic] Gaul had been conquered and subdued; but that he had never gone in person to Aquitania , but had made a conquest of it, in some degree, by Marcus Crassus, set out for it with two legions, designing to spend the latter part of the summer there. This affair he executed with his usual dispatch and good fortune. For all the states of Aquitania sent embassadors to him and delivered hostages. These affairs being concluded, he marched with a guard of cavalry toward Narbo , and drew off his army into winter quarters by his lieutenants. He posted four legions in the country of the Belgae, under Marcus Antonius, Caius Trebonius, Publius Vatinius, and Quintus Tullius, his lieutenants. Two he detached to the Aedui, knowing them to have a very powerful influence throughout all Gaul. Two he placed among the Turoni , near the confines of the Carnutes, to keep in awe the entire tract of country bordering on the ocean; the other two he placed in the territories of the Lemovices , at a small distance from the Arverni, that no part of Gaul might be without an army. Having spent a few days in the province, he quickly ran through all the business of the assizes, settled all public disputes, and distributed rewards to the most deserving; for he had a good opportunity of learning how every person was disposed toward the republic during the general revolt of Gaul, which he had withstood by the fidelity and assistance of the Province.