 Quintus Fulvius marched through Celtiberian territory, ravaged the countryside and stormed many forts until the Celtiberians surrendered.Since his successor, Tiberius Sempronius Gracchus, was late, Flaccus started a third campaign against the Celtiberians who had not surrendered, ravaging the more distant parts of Celtiberia, where the Lusones lived.On his way back to Tarraco to hand the command of the army to Gracchus, Flaccus was ambushed at the Manlian Pass.