First assault Arriving at New Carthage after a rapid march, the Romans established a camp on a hill in the middle of the isthmus connecting the city with the mainland, opposite the main gate. A rampart and ditch protected the rear (east) of the camp, but this was not repeated on the side facing the gate. Mago kept part of his regular troops in reserve in the
citadel, which was in the west of the city, and the balance were posted on or near the southern wall. The 2,000 militia were stationed near the east gate and the rest of the town levy were issued with missiles and stationed all round the perimeter. Scipio made a stirring speech and the next morning the Romans attempted to storm the city: the Roman galleys assaulted the southern walls from the harbour while 2,000 picked
legionaries made ready to attack the east gate and the walls to either side; both were supplied with ladders with which to attempt to
escalade the walls. During the Punic Wars it was usual for the garrisons of besieged towns and cities to initially give battle outside their walls, regardless of the relative sizes of the attacking and defending forces. Failure to do so was taken as an indication of the defender's weakness and lack of confidence by both sides. New Carthage was no exception and the 2,000 militia
sallied from the east gate to counter-attack the Roman assault party. The Romans hung back, causing the initial fighting to develop nearer their camp than the city, perhaps from the gate. Even so, given the narrowness of the isthmus, it was not possible for the Romans to readily bring their superior numbers to bear or to outflank the Carthaginians. At first the Carthaginian militia did well, but as the fighting continued the Romans were able to replace tired and wounded men from their large reserve in their camp; the Carthaginians possessed no such reserve. The Carthaginians began to be pushed back and eventually broke and fled. The Romans pursued, inflicting heavy casualties on the Carthaginians as they struggled to retreat through the east gate. The Romans attempted to force their way through the gate before it could be closed, but failed. They then endeavoured to storm the walls on either side of the gate before the defenders could reorganise. This latter involved the attackers climbing the ladders which accompanied them amid missile fire from the defenders, then attempting to fight their way onto the walls. As the legionaries were attempting to do this, the
marines from the Roman fleet were attempting the same thing against the south wall. The Carthaginian defenders were able to initially hold off these assaults and as the survivors of the militia sortie reinforced them on the walls Roman casualties mounted and success looked unlikely. Eventually, Scipio called off the attack.
Second assault It was usual after a failed assault on fortifications for the attacking force to rest for several days before considering renewing their attack. To the Carthaginians' surprise, the Romans renewed their efforts that afternoon, with fresh troops and fresh supplies of scaling ladders. The galleys under Laelius again attacked the south wall, another force of infantry manoeuvred in the area of the channel to the west of the cityalthough this was a
feintand the main effort was again against the east gate and the nearby walls. Having expended most of their ammunition repelling the morning attacks, the Carthaginians were not able to respond as effectively to these; they were able to hold the walls with difficulty. Concerned, Mago moved reinforcements to the threatened areas, which resulted in the unthreatened northern wall being denuded of defenders. Scipio had maintained a reserve of 500 picked men and held them ready to move against the north wall, anticipating that threats from the other three cardinal directions would lead to its defences being weakened. To achieve its objective, this force would need to cross the broad lagoon. The near-contemporary and usually reliable Greek historian
Polybius wrote an account of the battle. According to the traditional translation of this he states that each evening the tide caused the water level in the lagoon north of New Carthage to lower to the extent that it was fordable. He continues that Scipio learnt of this during his gathering of intelligence in
Tarraco and so timed his attacks as to make it probable that the wall bordering the lagoon was lightly held at the very time he wished to send a force to ford the lagoon and escalade the wall. The ancient Roman historian
Livy, writing two centuries later, contradicts thisperhaps aware that tides do not operate on a 24-hour cyclesaying that the effect was because of a regular north wind piling up the waters of the lagoon each evening. Both of these accounts raise problems, not least why the Carthaginians were not aware of whatever changes took place and failed to take precautions. Modern historians have offered several interpretations of Polybius's account and suggested different ways in which the level of the lagoon could have been artificially lowered. Among the latter have been its use as a
fish farm or a
salt evaporation pond, the level being controlled by
sluices on the channel to the west of the city taking advantage of the
tidal range in the area. Benedict Lowe writes that the manoeuvres to the west of the city were not a feint, but the successful capture and opening of these sluices. J. H. Richardson, however, dismisses both Polybian and Livian accounts on grounds of hydrological and geological impossibility: tides at New Carthage are too small and slow to have drained the lagoon and there is insufficient space in which to produce a wind which could have blown out the million of litres of water contained. He instead suggests that the lagoon was itself largely fordable and that no hydrological event was necessary. Where the Romans crossed the lagoon to approach the north wall is also uncertain. Modern accounts suggest variously that an underwater ridge was followed across a relatively deep lagoon from the north shore; that a uniformly shallow lagoon was traversed from the north; or that the Romans stayed close to the north wall, following the south shore of the lagoon. In any event, the 500 Romans were guided across the lagoon, reached the north wall without difficulty and scaled it. Their approach was not noticed by the Carthaginians. At the east gate the Romans attacked in a
testudo formation, with their shields held over their heads and overlapping. Thus protected the soldiers at the front hacked at the gate with axes. The assault against the south wall, by troops landed from the Roman galleys, continued to be pressed hard; after the battle one of the men attacking from this direction shared the award for being the first onto the walls. While the focus of the Carthaginians' efforts continued to be the east and south, the 500 Romans who had gained access from the north attacked east along the wall, cutting down the few defenders they encountered. These Romans gained access to the east gate from the inside and opened it to their comrades outside. At about the same time the Carthaginian defence as a whole wavered and the escalading forces got onto the walls in increasing numbers.
Inside New Carthage More and more Romans entered the city, although there continued to be a danger that the Carthaginians would get the best of the fighting on the walls and in the narrow streets and expel the Romans. Mago was occupying the citadel in the west of New Carthage with many, perhaps most, of the 1,000 Carthaginian regulars and a
counterattack spearheaded by these troops was likely. Scipio joined the fighting for the first time, entering New Carthage with a large force under his direct command and heading for the marketplace in the centre of the city. The rest of the Romans who had broken into the city were instructed to sack it, which they did with great enthusiasm. All Carthaginian soldiers and civilians encountered were massacred, and all items of value were seized and deposited at the marketplace. Scipio sent a force from the marketplace against one of the city's hills where the Carthaginians were fighting on and personally led 1,000 men to the citadel, where he demanded Mago's surrender. Mago initially refused, but once it became clear that the Romans had irrevocably taken control of the city he surrendered both the citadel and his command. With the citadel secure and resistance at an end, Scipio called a halt to the sack. Apart from the 1,000 men in the citadel with Scipio and those in their camp, the Romans spent the night in the marketplace. The next day some of the loot was auctioned off to the traders who always accompanied a Roman army. The proceeds of this and the rest of the plunder were divided between all the men of the legions, including those who had not participated in the fighting, the amount dependent on their rank. Later Scipio also rewarded those who had distinguished themselves during the capture of the city. The , the crown awarded to the first man over the wall, was fiercely contested by a centurion of the Fourth Legion,
Quintus Trebellius, and a marine,
Sextus Digitius. After a detailed investigation, Scipio gave the crown to both, accepting that both men had reached the wall at the same time.
Plunder and prisoners As well as the portable valuables looted during the sack, the Romans seized a great quantity of war materiel. The martial booty has been described by modern historians as "colossal" or "immense". It included 63 merchant ships, several catapults, large quantities of armour and personal weapons, a working mint and a well-filled treasury including 600
talents of silver. Large stocks of food were also seized. Some 10,000 Carthaginian men survived the massacre associated with the sack to be taken prisoner. They included 15 members of the Carthaginian Senate and two members of the Carthaginian inner council, the Council of Thirty. Also taken were more than 300 hostages: the relatives of the leaders of Iberian tribes allied to Carthage who were being held to ensure their relatives good behaviour. Scipio ostentatiously ensured that they were treated well, especially the women among them, and returned them to their homes if their tribes switched their allegiance to Rome. Some modern sources state they were all allowed home as a gesture of good will. Rather than enslaving the citizens among the captives, Scipio released them and their families to their ransacked homes. The poorer non-citizens, who mostly worked as artisans, were enslaved; they were to continue their normal work, but for the Roman war effort and were promised their freedom once the war was over. The stronger and fitter of the captured slaves were
impressed to crew 18 of the captured ships, which were converted to military purposes; again they were promised their freedom once the war concluded. For the rest of the war in Iberia the Roman effort was largely self-supporting; troops were recruited locally and they and the Romans were fed and equipped from local resources. Scipio repaired the city's fortifications and shortly after left a substantial garrison and withdrew the rest of his troops to Tarraco. == Aftermath==