Now Hannibal gave the order for the elephants to charge. But many of these ferocious brutes, being only imperfectly trained, becoming frightened at the blaring of the Roman trumpets and horns, turned back again upon their own side and charged in among the allied Numidian cavalry fighting Massinissa upon the left wing, thus making it easy for that Numidian prince to rout his kinsman Tychæus thoroughly. The rest of the elephants did a considerable amount of damage to the Romans, but, owing to the spaces that Scipio had left between the maniples, down which many of them charged, not half the amount of damage that they ought to have done. And then, their bodies being full of darts, they ran away to the right, being driven off the field by further darts from the Roman cavalry in the Roman left wing. And the elephants being out of the way, Caius Lælius with all his horse charged the Carthaginian cavalry opposed to them and put them to flight, being joined by Massinissa with his Numidians in the pursuit, which resulted in an utter rout.
And now the Roman infantry and the mercenaries of the Carthaginian front line charged each other, the Romans clashing with their swords upon their shields as they advanced, making a deafening and terrible din.
But the Celts and Mauretani, the Balearic Islanders and the Ligurians were not disconcerted either by these terrifying sounds or by the awe-inspiring sight of the huge sombre plumes waving above the helmets of the advancing Romans, making them appear about two feet greater in stature than ordinary men.
Raising in turn their own fierce war-cries, each in his own tongue, the mercenaries stood their ground nobly, and now every man, foot to foot, body to body, and shield to shield, cut and thrust and cut and thrust again, while as each man went down, his comrade stepped up from the rear and filled his vacant place. For long the issue of the combat between the front lines of the infantry remained uncertain, while men went down in hundreds, never to rise again.
At length, owing to the steadiness of the rear ranks of the Romans, who supported and encouraged their front rank men, while on the other hand, the cowardly Carthaginian levies, in rear of the mercenaries, began to waver and then to give way, the Romans began to gain ground. Thus the mixed bodies of foreign troops, being forced back by the weight of the Romans, and realising that they were being shamelessly deserted by their own side, turned their backs upon the Romans in front of them and joined them in falling upon the Carthaginian troops in their rear who had failed to support them.
And as Hannibal, who, with Maharbal, was remaining in rear with the reserves of the army of Italy, would by no means allow them to enter his ranks, but had them thrust back with the spear’s point, these flying Carthaginians were now compelled, whether they would or no, to face to the front again and fight. This they did with the fury and courage of despair when it was too late, and, furiously charging their own mercenaries and the Romans combined, not only killed many of their own men, but threw the ranks of the hitherto successful Hastati into confusion; whereupon Scipio advanced his Principes of the second line to drive them back. By this time, however, the greater part of the mercenaries and the Carthaginians had either killed each other or been killed by the Hastati, who were also many of them dead or dying. The ground was now so utterly encumbered with wounded men and corpses, and so slippery with blood, while arms and shields were tossed about everywhere in helpless confusion, that it was impossible for Scipio to advance in line formation his Principes, with their supports of the third line—that is, the Triarii against the main body of the army of Italy which was waiting under Hannibal for their advance.
Sounding a bugle, therefore, Scipio recalled such of the Hastati as had pursued beyond the zone where the bodies were lying thickest, and halted them there.
Then putting his Principes and Triarii into formations of files two or four deep, he threaded his way with them through the area where the dead and dying lay in heaps, and then re-formed all these fresh men into line again upon the other side, one line being as before in rear of the other.
He now caused such of the Hastati as had survived to fall in on the flanks of the new troops. These arrangements being made, he continued his advance.
Now Hannibal and Maharbal and all their veterans of many a hundred combats were thirsting for the fray, which they had been compelled, while inactive themselves, to witness for so long.