time. Xanthippus The Carthaginians were recruiting fighting men from all over the Mediterranean region, and at around this time a large group of recruits from Greece arrived in Carthage. Among them was a Spartan mercenary commander, Xanthippus. Polybius states he had taken part in Spartan training methods and that he knew both how to deploy and how to manoeuvre an army. He made a good impression with the troops of the Carthaginian army, and was able to persuade the Carthaginian Senate that the strongest elements of their army were their cavalry and elephants and that to be deployed to best effect they needed to fight on open level ground. The historian John Lazenby speculates he may have previously faced elephants when Pyrrhus of Epirus attacked Sparta in the 270s BC. Xanthippus was put in charge of training over the winter, although a committee of Carthaginian generals retained operational control. As the prospect of a decisive battle drew nearer, and as Xanthippus's skill at manoeuvring the army became more evident, full control was given to him. Whether this was a decision of the Senate, the generals, or was forced on them by the wishes of the troops, who included many Carthaginian citizens, is not clear. Battle Xanthippus led the army of 100 elephants, 4,000 cavalry and 12,000 infantrythe latter included the 5,000 veterans from Sicily and many citizen-militiaout of Carthage and set up camp close to the Romans in an area of open plain. The precise site is not known, but it is assumed to be close to Tunis. The Roman army of about 15,000 infantry and 500 cavalry advanced to meet them, and set up camp about away. The next morning both sides deployed for battle. Xanthippus placed the Carthaginian citizen-militia in the centre of his formation; with the Sicilian veterans and the freshly hired infantry divided on either side of them; and with the cavalry equally divided on either side of these. The elephants were deployed in a single line in front of the centre of the infantry. The Romans placed their legionary infantry in their centre, arranged in a deeper and denser formation than usual. Polybius considered this to be an effective anti-elephant formation, but points out that it shortened the frontage of the Roman infantry and made them liable to being out-flanked. Light infantry skirmishers were positioned in front of the legions, and the 500 cavalry were