When Justinian secured the so-called "Eternal Peace" with the Persians in AD 532 after the Battle of Daras, it is likely that he realized that the peace on his eastern frontier would not actually be perpetual. But he probably thought it would last longer that seven or eight years. In any event, the emperor made the most the respite, gathering his substantial forces from the east which had previously been on station to face down the Persian menace, and readying them for a thrust to the West. His first target was the Vandal Kingdom which had ruled Roman Africa for...