Celtic warfare
The "Gallic Wars" were a series of military campaigns waged by the Roman proconsul Julius Caesar against Gallic tribes, lasting from 58 BC to 51 BC. The Romans would also raid Britannia and Germania, but these expeditions never developed into full-scale invasions. The Gallic Wars 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. The wars paved the way for Caesar to become the sole ruler of the Roman Republic.
Campaign history of the Roman military
Caesar defeated the "Helvetii" in 58 BC at the Battle of the Arar and Battle of Bibracte, the Belgic confederacy known as the "Belgae" at the Battle of the Axona, the "Nervii" in 57 BC at the Battle of the Sabis, the "Aquitani", "Treviri", "Tencteri", "Aedui" and "Eburones" in unknown battles, and the "Veneti" in 56 BC. In 55 and 54 BC he made two expeditions to Britain. In 52 BC, following the Siege of Avaricum and a string of inconclusive battles, Caesar defeated a union of Gauls led by Vercingetorix at the Battle of Alesia, completing the Roman conquest of Transalpine Gaul. By 50 BC, the entirety of Gaul lay in Roman hands. Caesar recorded his own accounts of these campaigns in "Commentarii de Bello Gallico" ("Commentaries on the Gallic War").