But it was not the losses of the Romans that was the most surprising thing in these engagements. It was the losses of Hannibal. Who, before Hannibal or after him, has lost as many as the Romans and yet been conqueror? To keep troops in action, until victory comes, with such losses, requires a most powerful hand.
He inspired his people with absolute confidence. Almost always his center, where he put his Gauls, his food for powder, was broken. But that did not seem to disquiet or trouble either him or his men.
It is true that his center was pierced by the Romans who were escaping the pressure of the two Carthaginian wings, that they were in disorder because they had fought and pushed back the Gauls, whom Hannibal knew how to make fight with singular tenacity. They probably felt as though they had escaped from a press, and, happy to be out of it, they thought only of getting further away from the battle and by no means of returning to the flanks or the rear of the enemy. In addition, although nothing is said about it, Hannibal had doubtless taken precautions against their ever returning to the conflict.
All that is probably true. The confidence of the Gallic troops, so broken through, is none the less surprising.
Hannibal, in order to inspire his people with such confidence, had to explain to them before the combat his plan of action, in such a way that treachery could not injure him. He must have warned his troops that the center would be pierced, but that he was not worried about it, because it was a foreseen and prepared affair. His troops, indeed, did not seem to be worried about it.
Let us leave aside his conception of campaigns, his greatest glory in the eyes of all. Hannibal was the greatest general of antiquity by reason of his admirable comprehension of the morale of combat, of the morale of the soldier whether his own or the enemy's. He shows his greatness in this respect in all the different incidents of war, of campaign, of action. His men were not better than the Roman soldiers. They were not as well armed, one-half less in number. Yet he was always the conqueror. He understood the value of morale. He had the absolute confidence of his people. In addition he had the art, in commanding an army, of always securing the advantage of morale.
In Italy he had, it is true, cavalry superior to that of the Romans. But the Romans had a much superior infantry. Had conditions been reversed, he would have changed his methods. The instruments of battle are valuable only if one knows how to use them, and Pompey, we shall see, was beaten at Pharsalus precisely because he had a cavalry superior to that of Caesar.
If Hannibal was vanquished at Zuma, it was because genius cannot accomplish the impossible. Zuma proved again the perfect knowledge of men that Hannibal possessed and his influence over the troops. His third line, the only one where he really had reliable soldiers, was the only one that fought. Beset on all sides, it slew two thousand Romans before it was conquered.
We shall see later what a high state of morale, what desperate fighting, this meant.