The Carthaginians, in their wars, did very much use mercenary and foreign troops; and when the peace was made between them and the Romans, after a long dispute for the dominion of Sicily, they brought their army home to be paid and disbanded, which Gesco, their General, had the charge of embarking, who did order all his part with great dexterity and wisdom. But the State of Carthage wanting money to clear arrears, and satisfy the troops, was forced to keep them up longer than was designed. The army consisted of Gauls, Ligurians, Baleareans, and Greeks. At first they were insolent in their quarters in Carthage, and were prevailed upon to remove to Sicca, where they were to remain and expect their pay. There they grew presently corrupted with ease and pleasure, and fell into mutinies and disorder, and to making extravagant demands of pay and gratuities; and in a rage, with their arms in their hands, they marched 20,000 of them towards Carthage, encamping within fifteen miles of the city; and chose Spendius and Matho, two profligate wretches, for their leaders, and imprisoned Gesco, who was deputed to them from the commonwealth. Afterwards they caused almost all the Africans, their tributaries, to revolt; they grew in a short time to be 70,000 strong; they fought several battles with Hanno and Hamilcar Barcas. During these transactions, the mercenaries that were in garrison in Sardinia mutinied likewise, murdering their commander and all the Carthaginians; while Spendius and Matho, to render their accomplices more desperate, put Gesco to a cruel death, presuming afterwards to lay siege to Carthage itself. They met with a shock indeed at Prion, where 40,000 of them were slaughtered; but soon after this battle, in another they took one of the Carthaginian generals prisoner, whom they fixed to a cross, crucifying thirty of the principal senators round about him. Spendius and Matho were at last taken, the one crucified and the other tormented to death: but the war lasted three years and near four months with excessive cruelty; in which the State of Carthage lost several battles, and was often brought within a hair’s-breadth of utter ruin.
If so great a commonwealth as Carthage, though assisted at that time by Hiero, King of Syracuse, and by the Romans, ran the hazard of losing their empire, city, and liberties, by the insurrection of a handful of mercenaries, whose first strength was but 20,000 men; it should be a warning to all free nations how they suffer armies so composed to be among them, and it should frighten a wise State from desiring such an increase of people as may be had by the bringing over foreign soldiers.