It turns out that the rebel soldiers who wanted to surrender were mainly poor people from Great Greece. When the rebel army was winning one victory after another, they were fervent supporters of continuing the fight against the Romans in Italy instead of fleeing to the Alps. However, this period of being besieged in the Regium region was difficult, and the powerful image of the Roman Army once again filled their timid hearts. Taking advantage of the chaos, they quietly slipped away from the troops and ended up surrendering to the Roman Army that had come to their rescue.
Crassus immediately interrogated these soldiers, thereby learning that there were still parts of the rebel army lurking in the Regium region.
He made a quick decision: instead of pursuing the breakout rebel army, he immediately dispatched two legions to capture the rebel camp in the Regium region.