The preparations for this war lasted three years. The land army amounted to no less than three hundred thousand men. The fleet consisted of two thousand ships of war, and upwards of three thousand small vessels of burden. Hamilcar, the most experienced captain of his age, sailed from Carthage with this formidable army. He landed at Palermo;(611) and, after refreshing his troops, he marched against Hymera, a city not far distant from Palermo, and laid siege to it. Theron, who commanded in it, seeing himself very much straitened, sent to Gelon, who had possessed himself of Syracuse. He flew immediately to his relief, with fifty thousand foot, and five thousand horse. His arrival infused new courage into the besieged, who, from that time, made a very vigorous defence. Gelon was an able warrior, and excelled in stratagems. A courier was brought to him, who had been despatched from Selinus, a city of Sicily, with a letter for Hamilcar, to inform him of the day when he might expect the cavalry which he had demanded of them. Gelon drew out an equal number of his own troops, and sent them from his camp about the time agreed on. These being admitted into the enemy’s camp, as coming from Selinus, rushed upon Hamilcar, killed him, and set fire to his ships. In this critical conjuncture, Gelon attacked, with all his forces, the Carthaginians, who at first made a gallant resistance. But when the news of their general’s death was brought them, and they saw their fleet in a blaze, their courage failed them, and they fled. And now a dreadful slaughter ensued; upwards of a hundred and fifty thousand being slain. The rest of the army, having retired to a place where they were in want of every thing, could not make a long defence, and were forced to surrender at discretion. This battle was fought the very day of the famous action of Thermopylæ, in which three hundred Spartans,(612) with the sacrifice of their lives, disputed Xerxes’s entrance into Greece.