At last on the 4th of April the armies met on the field of Thapsus. On this occasion many of Cæsar’s men were fresh recruits, and he was not without some misgivings about their steadiness. But they were not less impatient for the onset than the veterans, whom their general recommended to their imitation, and loudly demanded the signal to engage. While he still hesitated, checking with hand and voice the impatient swaying of the lines, suddenly the blast of a single trumpet burst forth on the right wing. The impetuous ferocity of the tenth legion could no longer brook restraint; they had raised the signal unbidden; and now the whole army rushed forward in one unbroken body, overpowering their officers’ efforts to detain them. Cæsar, when he beheld rank after rank pouring by him, without the possibility of recall, gave the word “Good luck” to his attendants, and spurred his horse to the head of his battalions. The combat was speedily decided. The elephants, thrown into confusion by the first discharge of stones and arrows, turned upon the ranks they were placed to cover, and broke in pieces their array. The native cavalry, dismayed at losing their accustomed support, were the first to abandon the field. Scipio’s legions made little resistance; they sought shelter behind their entrenchments. But their officers had fled, and the men, left without a commander, rushed in quest of their discomfited allies. They found the Numidian camp in the hands of the enemy; they begged for quarter, but little mercy was shown them, and Cæsar himself beheld with horror a frightful massacre which he was powerless to control. Scipio escaped to the coast, and embarked with others for Spain, but was intercepted and slain.[119] Juba and Petreius fled together, and sought refuge within the walls of Zama. But the Numidians rejoiced in the defeat of their tyrants and refused them solace or shelter. The fugitives, repulsed in every quarter, and disdaining to solicit the victor’s clemency, placed themselves at a banquet together, drank their fill of wine, and challenged each other to mortal combat. Petreius, the elder of the two, was despatched by his opponent, who then threw himself upon his own sword.[120]
The rout of Thapsus was known at Utica on the same evening. On the morrow Cato convened the Roman officers and residents, and laid before them the state of their affairs. Calmly and cheerfully he enumerated his means of defence, and desired them to decide for themselves whether they would resist the conqueror, or seek safety in flight or capitulation. The knights and senators, despairing of pardon, would have held out to the uttermost; but the traders and men of peace, who had long settled in Utica, and were conscious that they had done nothing hitherto to provoke the wrath of the assailant, insisted on a timely surrender. When it was known that Cæsar was approaching, Cato caused all the gates to be closed except that which led to the sea, and urged all that would to betake themselves to the ships. He dismissed his personal friends, of whom a few only, and among them his own son, insisted on remaining with him; for he had plainly intimated that for his own part he would not quit his post. With these cherished associates he sat down to supper, and discoursed with more than his usual fervour on the highest themes of philosophy, especially on the famous paradox of the stoics, that the good man alone is free, and all the bad are slaves. His companions could not fail to guess the secret purpose over which he was brooding. They betrayed their anxiety only by silent gestures; but Cato, observing the depression of their spirits, strove to reanimate them, and divert their thoughts by turning the conversation to topics of present interest.
[46 B.C.]