and defends on two fronts with Roman and Etruscan forces holding Etrurian border and sent a significant allied force of 40,000 Italians (Umbrians, Sarsinates), native Veneti and Cisalpine Cenomani Celts to attack the Cisalpine territory of the Boii. 225 BCE Battle of Faesulae . Cisalpine Roman-Celtic Wars. Roman and allied Etruscan