Because most of them died without dreaming of selling their lives and because they took to flight during the fight of the first line and were struck with impunity from behind. The words of Polybius: "Most of them remained on the spot after having defended themselves with the utmost valor," were consecrated words before Polybius. The conquered always console themselves with their bravery and conquerors never contradict. Unfortunately, the figures are there. The facts of the battle are found in the account, which sounds no note of desperation. The Gallic and Roman cavalry had each already made a brave effort by attacking each other from the front. This effort was followed by the terrible anxiety of close combat. The Roman cavalrymen, who from behind the combatants on foot were able to see the second Gallic line on horse back, gave ground. Fear very quickly made the disengaged ranks take to their horses, wheel about like a flock of sheep in a stampede, and abandon their comrades and themselves to the mercy of the conquerors. Yet, these horsemen were brave men, the elite of the army, noble knights, guards of the consuls, volunteers of noble families. The Roman cavalry defeated, Hasdrubal passed his Gallic and Iberian troopers behind Hannibal's army, to attack the allied cavalry till then engaged by the Numidians. [9] The cavalry of the allies did not await the enemy. It turned its back immediately; pursued to the utmost by the Numidians who were numerous (three thousand), and excellent in pursuit, it was reduced to some three hundred men, without a struggle. After the skirmishing of the light infantry troops, the foot-soldiers of the line met. Polybius has explained to us how the Roman infantry let itself be enclosed by the two wings of the Carthaginian army and taken in rear by Hasdrubal's cavalry. It is also probable that the Gauls and Iberians, repulsed in the first part of the action and forced to turn their backs, returned, aided by a portion of the light infantry, to the charge upon the apex of the wedge formed by the Romans and completed their encirclement. But we know, as will be seen further on in examples taken from Caesar, that the ancient cavalryman was powerless against formed infantry, even against the isolated infantryman possessing coolness. The Iberian and Gallic cavalry ought to have found behind the Roman army the reliable triarians penned in, armed, with pikes. [10] It might have held them in check, forced them to give battle, but done them little or no harm as long as the ranks were preserved. We know that of Hannibal's infantry only twelve thousand at the most were equipped with Roman weapons. We know that his Gallic and Iberian infantry, protected by plain shields, had to fall back, turn, and probably lost in this part of the action very nearly the four thousand men, which the battle cost them.