 This ambition was expressed by the partial recovery of the territories of the defunct western Roman empire.His general, Belisarius, swiftly conquered the Vandal kingdom in North Africa, extending Roman control to the Atlantic Ocean in 533.Subsequently, Belisarius, Narses, and other generals conquered the Ostrogothic kingdom, restoring Dalmatia, Sicily, Italy, and Rome to the empire after more than half a century of rule by the Ostrogoths.