In AD 533, Emperor Justinian, using a Vandal dynastic dispute as pretext, sent an army under the general Belisarius to recover Africa. In a short campaign, Belisarius defeated the Vandals, entered Carthage in triumph and re-established Roman rule over the province. The restored Roman administration was successful in fending off the attacks of the Amazigh desert tribes, and by means of an extensive fortification network managed to extend its rule once again to the interior.