Gallic Wars
The Gallic Wars were a series of military campaigns waged by the Roman proconsul Julius Caesar against several Gallic tribes. Rome's war against the Gallic tribes lasted from 58 BC to 50 BC and culminated in the decisive Battle of Alesia in 52 BC, in which a complete Roman victory resulted in the expansion of the Roman Republic over the whole of Gaul (mainly present-day France and Belgium). While militarily just as strong as the Romans, the internal division between the Gallic tribes helped ease victory for Caesar, and Vercingetorix's attempt to unite the Gauls against Roman invasion came too late. The wars paved the way for Julius Caesar to become the sole ruler of the Roman Republic.
Gauls
After more than a century of warfare, the Cisalpine Gauls were subdued by the Romans in the early 2nd century BC. The Transalpine Gauls continued to thrive for another century, and joined the Germanic Cimbri and Teutones in the Cimbrian War, where they defeated and killed a Roman consul at Burdigala in 107 BC, and later became prominent among the rebelling gladiators in the Third Servile War. The Gauls were finally conquered by Julius Caesar in the 50s BC despite a rebellion by the Arvernian chieftain Vercingetorix. During the Roman period the Gauls became assimilated into Gallo-Roman culture and by expanding Germanic tribes. During the crisis of the third century, there was briefly a breakaway Gallic Empire founded by the Batavian general Postumus.