A Veientian war broke out, with whom the Sabines had united their forces.

The consul P.Valerius, after auxiliaries were sent for from the Latins and Hernicians, being despatched to Veii with an army, immediately attacks the Sabine camp, which had been pitched before the walls of their allies: and occasioned such great consternation, that while, dispersed in different directions, they sally forth to repel the assault of the enemy, the gate which the Romans first attacked was taken; then within the rampart there was rather a carnage than a battle.

From the camp the alarm spreads into the city; the Veientians run to arms in as great a panic as if Veii had been taken: some come up to the support of the Sabines, others fall upon the Romans, who had directed all their force against the camp.

For a little while they were disconcerted and thrown into confusion; then they too forming two fronts make a stand: and the cavalry, being commanded by the consul to charge, routs the Etrurians and puts them to flight; and in the same hour two armies and two of the most influential and powerful of the neighbouring states were vanquished.

Whilst these transactions are going on at Veii, the Volsci and AEqui had pitched their camp in the Latin territory, and laid waste their frontiers.