On the report of Scipio's landing, Massinissa immediately arrived in the camp of the general, whom not long before he had confronted as an enemy in Spain; but the landless prince brought in the first instance nothing beyond his personal ability to the aid of the Romans, and the Libyans, although heartily weary of levies and tribute, had acquired too bitter experience in similar cases to declare at once for the invaders. So Scipio began the campaign. So long as he was only opposed by the weaker Carthaginian army, he had the advantage, and was enabled after some successful cavalry skirmishes to proceed to the siege of Utica; but when Syphax arrived, according to report with 50,000 infantry and 10,000 cavalry, the siege had to be raised, and a fortified naval camp had to be constructed for the winter on a promontory, which easily admitted of entrenchment, between Utica and Carthage. Here the Roman general passed the winter of 550-1. From the disagreeable situation in which the spring found him he extricated himself by a fortunate coup de main. The Africans, lulled into security by proposals of peace suggested by Scipio with more artifice than honour, allowed themselves to be surprised on one and the same night in their two camps; the reed huts of the Numidians burst into flames, and, when the Carthaginians hastened to their help, their own camp shared the same fate; the fugitives were slain without resistance by the Roman divisions. This nocturnal surprise was more destructive than many a battle; nevertheless the Carthaginians did not suffer their courage to sink, and they rejected even the advice of the timid, or rather of the judicious, to recall Mago and Hannibal. Just at this time the expected Celtiberian and Macedonian auxiliaries arrived; it was resolved once more to try a pitched battle on the "Great Plains", five days' march from Utica. Scipio hastened to accept it; with little difficulty his veterans and volunteers dispersed the hastily-collected host of Carthaginians and Numidians, and the Celtiberians, who could not reckon on any mercy from Scipio, were cut down after obstinate resistance. After this double defeat the Africans could no longer keep the field. An attack on the Roman naval camp attempted by the Carthaginian fleet, while not unsuccessful, was far from decisive, and was greatly outweighed by the capture of Syphax, which Scipio's singular good fortune threw in his way, and by which Massinissa became to the Romans what Syphax had been at first to the Carthaginians.
After such defeats the Carthaginian peace party, which had been reduced to silence for sixteen years, was able once more to raise its head and openly to rebel against the government of the Barcides and the patriots. Hasdrubal son of Gisgo was in his absence condemned by the government to death, and an attempt was made to obtain an armistice and peace from Scipio. He demanded the cession of their Spanish possessions and of the islands of the Mediterranean, the transference of the kingdom of Syphax to Massinissa, the surrender of all their vessels of war except 20, and a war contribution of 4000 talents (nearly 1,000,000 pounds) - terms which seemed so singularly favourable to Carthage, that the question obtrudes itself whether they were offered by Scipio more in his own interest or in that of Rome. The Carthaginian plenipotentiaries accepted them under reservation of their being ratified by the respective authorities, and accordingly a Carthaginian embassy was despatched to Rome. But the patriot party in Carthage were not disposed to give up the struggle so cheaply; faith in the nobleness of their cause, confidence in their great leader, even the example that had been set to them by Rome herself, stimulated them to persevere, apart from the fact that peace of necessity involved the return of the opposite party to the helm of affairs and their own consequent destruction. The patriotic party had the ascendency among the citizens; it was resolved to allow the opposition to negotiate for peace, and meanwhile to prepare for a last and decisive effort. Orders were sent to Mago and Hannibal to return with all speed to Africa. Mago, who for three years (549-551) had been labouring to bring about a coalition in Northern Italy against Rome, had just at this time in the territory of the Insubres (about Milan) been defeated by the far superior double army of the Romans. The Roman cavalry had been brought to give way, and the infantry had been thrown into confusion; victory seemed on the point of declaring for the Carthaginians, when a bold attack by a Roman troop on the enemy's elephants, and above all a serious wound received by their beloved and able commander, turned the fortune of the battle. The Phoenician army was obliged to retreat to the Ligurian coast, where it received and obeyed the order to embark; but Mago died of his wound on the voyage.
Hannibal would probably have anticipated the order, had not the last negotiations with Philip presented to him a renewed prospect of rendering better service to his country in Italy than in Libya; when he received it at Croton, where he latterly had his head-quarters, he lost no time in complying with it. He caused his horses to be put to death as well as the Italian soldiers who refused to follow him over the sea, and embarked in the transports that had been long in readiness in the roadstead of Croton. The Roman citizens breathed freely, when the mighty Libyan lion, whose departure no one even now ventured to compel, thus voluntarily turned his back on Italian ground. On this occasion the decoration of a grass wreath was bestowed by the senate and burgesses on the only survivor of the Roman generals who had traversed that troubled time with honour, the veteran of nearly ninety years, Quintus Fabius. To receive this wreath - which by the custom of the Romans the army that a general had saved presented to its deliverer - at the hands of the whole community was the highest distinction which had ever been bestowed upon a Roman citizen, and the last honorary decoration accorded to the old general, who died in the course of that same year (551). Hannibal, doubtless not under the protection of the armistice, but solely through his rapidity of movement and good fortune, arrived at Leptis without hindrance, and the last of the "lion's brood" of Hamilcar trode once more, after an absence of thirty-six years, his native soil. He had left it, when still almost a boy, to enter on that noble and yet so thoroughly fruitless career of heroism, in which he had set out towards the west to return homewards from the east, having described a wide circle of victory around the Carthaginian sea. Now, when what he had wished to prevent, and what he would have prevented had he been allowed, was done, he was summoned to help and if possible, to save; and he obeyed without complaint or reproach.
On his arrival the patriot party came forward openly; the disgraceful sentence against Hasdrubal was cancelled; new connections were formed with the Numidian sheiks through the dexterity of Hannibal; and not only did the assembly of the people refuse to ratify the peace practically concluded, but the armistice was broken by the plundering of a Roman transport fleet driven ashore on the African coast, and by the seizure even of a Roman vessel of war carrying Roman envoys. In just indignation Scipio started from his camp at Tunes (552) and traversed the rich valley of the Bagradas (Mejerdah), no longer allowing the townships to capitulate, but causing the inhabitants of the villages and towns to be seized en masse and sold. He had already penetrated far into the interior, and was at Naraggara (to the west of Sicca, now El Kef, on the frontier between Tunis and Algiers), when Hannibal, who had marched out from Hadrumetum, fell in with him. The Carthaginian general attempted to obtain better conditions from the Roman in a personal conference; but Scipio, who had already gone to the extreme verge of concession, could not possibly after the breach of the armistice agree to yield further, and it is not credible that Hannibal had any other object in this step than to show to the multitude that the patriots were not absolutely opposed to peace. The conference led to no result.