The Eastern Roman emperor Justinian took this as a pretext to interfere Hindering in Vandal affairs , and after he secured Preventing_or_letting his eastern frontier with Sassanid Persia in 532 , he began Process_start preparing GetReady an expedition under general Belisarius , whose secretary Procopius wrote Writing the main historical narrative of the war .

Gelimer 's elaborate plan to encircle Besieging and destroy Destroying the Roman army came close to success , but Belisarius was able to drive Self_motion the Vandal army to flight Self_motion and occupy Control Carthage .

Belisarius returned Arriving to Constantinople with the Vandals ' royal treasure and the captive Gelimer to enjoy Perception_active a triumph , while Africa was formally restored to imperial rule as the praetorian prefecture of Africa .