Battle of Vadimo
From Conservapedia
The Battle of Vadimo was fought in 310 B.C. as part of the Second Samnite War. It was near the end of the war when the Etruscans had entered the war on the side of the Samnites against Rome. The Etruscans were defeated in the battle by Rome and forced to make peace (308 B.C.)
Sources
Encyclopedia of Military History, Dupuy & Dupuy, 1979