He conquered many nations, most notably, the Gauls, the Belgae, the Aquitani, and the tribes living in Britain at the time. (Modern countries - France, Belgium, and England)

France has been inhabited by early humans for hundreds of thousands of years.

In recorded History, the Greek and Roman writers noted the presence of three main groups in the area: the Gauls, the Aquitani, and the Belgae.

Southern France, from Ceasers speech to the senate on returning from Gaul

"Gallia est omnis divisa in partes tres, quarum unam incolunt Belgae, aliam Aquitani, tertiam qui ipsorum lingua Celtae, nostra Galli appellantur"