An invasion by a vast host of Goths was defeated at the Battle of Naissus in 268 or 269. This victory was significant as the turning point of the crisis, when a series of tough, energetic soldier - emperors took power. Victories by the emperor Claudius II Gothicus over the next two years drove back the Alamanni and recovered Hispania from the Gallic Empire. When Claudius died in 270 of the plague, Aurelian, who had commanded the cavalry at Naissus, succeeded him as the emperor and continued the restoration of the Empire.
who invaded roman territory in the third century
Goths the Alamanni