Completed the following sentence: The main struggle (58<unk>50 BC) against the Romans came against Julius Caesar under Vercingetorix at Battle of Gergovia (a city of the Arverni) and at the
Battle of Alesia (a city of the Mandubii). <unk> <unk> <unk> <unk> Caesar seized the remainder of Gaul, justifying his conquest by playing on Roman memories of savage attacks over the Alps by Celts and Germans.<unk> Caesar seized the remainder of Gaul, justifying his conquest by playing on Roman memories of savage attacks over the Alps by Celts and Germans. <unk> <unk> <unk>