Hannibal
Hannibal made the area behind him safer by defeating the tribe of the Taurini (now Turin). The opposing forces fought at Carthage, where Hannibal forced the Romans to get out of the plain of Lombardy. This victory did much to weaken Roman control over the Gauls, who decided to join the Carthaginians. Soon, all of northern Italy was unofficially allied. Gallic and Ligurian troops soon raised his army back to 40,000 men. Hannibal’s army was ready to invade Italy. Scipio retreated across the River Trebia. He camped at the town of Placentia and waited for more troops.