Dictionary of Battles / From the Earliest Date to the Present Time

by Thomas Benfield Harbottle

Isara, The (Third Gallic Invasion).

Fought August 8, 121 B.C., between the Arverni and Allobroges, under Betuitdus, and the Romans, under Q. Fabius Maximus. The Gauls were totally defeated, and a bridge breaking down under the press of the fugitives, they suffered enormous loss.