[1] They were ordered to Cisalpine Gaul around 58 BC by Julius Caesar and marched with him throughout the entirety of the Gallic Wars, especially during the battles of Gergovie and Alesia.
In 43 BC it took part in the siege of the Battle of Mutina (current Modena) by Marc Antony, defended by the troops of Decimus Brutus, which earned Legio VIII Gallica the nickname "Mutinensis".
[4] Around 45 under Claudius, the VIII Augusta took part in the suppression of the Thracian uprising,[5] and founded its castrum at Novae where the Danube has its most southern bend and from where the legion controlled a long section of the river.
[7] Soon after Otho's death, the Danube legions voted for Vespasian and went with him to Mirebeau-sur-Bèze in Gaul[8] where it built its new base in 70 to oppose the revolts of the Treveri and especially the Ubii and Lingones against Rome.
[9][10] After restoration of Rome`s rule in the North in or before 86, the legion moved to its new headquarters at Argentoratum in Germania Superior (now Strasbourg), where the main part of the unit was stationed until the 5th century.