Led by Belisarius, the Byzantine armies in 534 won back North Africa from the Vandals, a tribe who had taken the region from Rome more than a century before. Thus he prepared the way for Justinian's primary aim, the reconquest of Italy from another tribe, the Ostrogoths. In 535, Belisarius conquered the island of Sicily, just off the Italian coast, and by 536, controlled the city of Rome itself.
After four bitter years of war, the Ostrogoths tried to crown Belisarius himself as "Emperor of the Western Empire,"
Detail of a famous mosaic of Justinian from the Church of San Vitale in Italy.
Reproduced by permission of the Granger Collection Ltd.
But Belisarius double-crossed them, and claimed all of Italy for Justinian in 540. The Ostrogoths responded by sending a message to Khosrow (kawz-ROW; ruled 531-79), the king of Persia, initiating a two-pronged offensive against the Byzantines. The Persians took several key cities, and this forced Justinian to send Belisarius eastward to deal with the Persian threat.
Without Belisarius in Italy,
Rome and other cities fell back into the hands of the Ostrogoths. In 550, however, Justinian sent a new general,
Narses (NAR-seez; c. 480-574), to conquer Italy. Over the course of the next thirteen years, he subdued the Ostrogoths and their allies, but in so doing he practically destroyed Italy; nevertheless, the Byzantines, who had also won back southern Spain, now con-frolled a large parf of fhe former Roman Empire.
Though Justinian spent most of his energy waging his wars of conquest, those wars were far from clear-cut successes. Not only did he cause great destruction to Italy itself, but he became intensely involved in the religious politics there, removing one pope in favor of another, and ordering the deaths of people who opposed his views on religion. Furthermore, the effort was hardly worth it: except for parts of Italy, the Byzantines lost most of the reconquered lands within a few years of Justinian's death.