Britain was now an easy target and was attacked by Picts from the North and by Irish Celts in the West. In Eastern Britain German mercenaries were employed by the Romano-British leader Vortigen to help defend against invading groups. In return these mercenaries were given the chance to settle in Eastern Britain. However, these foreign mercenaries encouraged other members of their tribes to join in the plunder of Britain and settle in Celtic lands. The new migrants included the Saxons, Jutes and Angles. They formed their own kingdoms in what is now known as England.
The Romans held off Hannibal in three battles, but then Hannibal smashed a succession of Roman consular armies. By this time Hannibal's brother Hasdrubal Barca sought to cross the Alps into Italy and join his brother with a second army. Hasdrubal managed to break through into Italy only to be defeated decisively on the Metaurus River .  Unable to defeat Hannibal on Italian soil, the Romans boldly sent an army to Africa under Scipio Africanus to threaten the Carthaginian capital. Hannibal was recalled to Africa, and defeated at the Battle of Zama .