The army numbered only twelve thousand foot, but had four thousand cavalry and a hundred elephants, in which much confidence was placed. The demand of the soldiers was complied with; they boldly marched out, and now no longer to the hills, but to the lower ground, where the devastation of the enemy was at once checked. Regulus was forced to risk a battle, for his supply of food was in peril. He marched out and encamped within a mile of the foe. The Carthaginian generals, on seeing these hardy Roman legions, so long victorious, were stricken with something like panic. But the soldiers were eager to fight, and Xanthippus bade the wavering generals not to lose so precious an opportunity. They yielded, and bade him to draw up the army on his own plan. In the battle that ensued the victory was due to the cavalry and elephants. The cavalry drove that of Italy from the field, and attacked the Roman rear. The elephants broke through the Roman lines in front, furiously trampling the bravest underfoot. Those who penetrated the line of the elephants were cut to pieces by the Carthaginian infantry. Of the whole Roman army, two thousand of the left wing alone escaped; Regulus, with five hundred others, fled, but was pursued and taken prisoner; the remainder of the army was destroyed to a man. The defeat was total. Rome retained but a single African port, which was soon given up. Xanthippus, crowned with glory and richly rewarded, returned to Greece to enjoy the fame he had won. For five years Regulus remained a prisoner in Carthage, while the war went on in Sicily. Here, in the year 250 B.C., the Romans gained an important victory at Panormus (now Palermo), and Carthage, weary of the struggle, sent to Rome to ask for terms of peace. With the ambassadors came Regulus, who had promised to return to Carthage if the negotiations should fail, and whom the Carthaginians naturally expected to use his utmost influence in favor of peace. They did not know their man. Regulus proved himself one of those indomitable patriots of whom there are few examples in the ages. On reaching the walls of Rome he refused at first to enter, saying that he was no longer a citizen, and had lost his rights in that city. When the ambassadors of Carthage had offered their proposal to the senate, Regulus, who had remained silent, was ordered by the senate to give his opinion of the proposed treaty. Thus commanded, he astonished all who heard by strongly advising the senate not to make the treaty. He might die for his words, he might perish in torture, but the good of his country was dearer to him than his own life, and he would not counsel a treaty that might prove of advantage to the enemy. He even spoke against an exchange of prisoners, saying that he had not long to live, having, he believed, been given a secret poison by his captors, and would not make a fair exchange for a hale and hearty Carthaginian general.