 In 530, Procopius related, Varas and his forces supported Rome at Dara against a Persian invasion against Byzantium (526-530).There he led 300 Heruli initially as defenders against Persian infantry and cavalry, and then in a hidden flanking attack against the Persian rearguard.In 533-34, Pharas intercepted the Vandal King Gelimer, who was attempting to flee Africa for Spain after suffering defeat at the Battle of Tricamarum.