Caudine Forks (Second Samnite War).
Fought B.C. 322, when four Roman legions, under T. Veturius Calvinus and Spurius Postumus were entrapped by the Sabines under Pontius, in the narrow pass of Caudium. The Romans fought till nightfall, suffering heavy loss, and next day, finding every exit from the pass barred, the survivors surrendered.