Norman conquest of southern Italy Ofanto near Cannae, the site of Hannibal's victory over the Romans in 216 BC, and the Battle of Cannae was a decisive Byzantine victory; Amatus wrote that only ten Normans survived from a contingent of 250. After the battle, Ranulf Drengot (one of the Norman survivors) was elected leader of their company. Boioannes protected his gains by building a fortress at the Apennine pass, guarding the entrance to the Apulian plain. In 1019 Troia (as the fortress was known) was garrisoned by Boioannes' Norman troops, an indication of Norman willingness to fight on either side. With Norman mercenaries on both
Battle of Utica (203 BC) and the reconquest of the parts of Sicily that had been temporarily lost after the battle of Cannae, the Romans secured a base for a naval assault on Carthage. They made use of that by carrying out a number of raids on African soil in 208, 207 and 205 BC. Since 206 BC, when Scipio Africanus finally expelled the Carthaginians from Iberia (see the battle of Ilipa), he was preoccupied with the idea that Africa should be the next target. To this end, he concluded an alliance with Syphax – one of the most powerful Numidian rulers at the time