 Complete the following phrase:  The Roman proconsul and general Julius Caesar pushed his army into Gaul in 58 BC, ostensibly to assist Romes Gaullish allies against the migrating Helvetii. With the help of various Gallic clans e.g. the Aedui he managed to conquer nearly all of Gaul. While their military was just as strong as the Romans, the internal division between the Gallic tribes guaranteed an easy victory for Caesar, and Vercingetorixs attempt to unite the Gauls against Roman invasion came too late. Julius Caesar was checked by Vercingetorix at a 