and the consequent elevation of Rome, is the second. All the varieties in the fortune of those two famous republics may very well be accounted for from the same cause.
From the end of the first to the beginning of the second Carthaginian war, the armies of Carthage were continually in the field, and employed under three great generals, who succeeded one another in the command; Amilcar, his son-in-law Asdrubal, and his son Annibal: first in chastising their own rebellious slaves, afterwards in subduing the revolted nations of Africa; and lastly, in conquering the great kingdom of Spain. The army which Annibal led from Spain into Italy must necessarily, in those different wars, have been gradually formed to the exact discipline of a standing army. The Romans, in the meantime, though they had not been altogether at peace, yet they had not, during this period, been engaged in any war of very great consequence; and their military discipline, it is generally said, was a good deal relaxed. The Roman armies which Annibal encountered at Trebi, Thrasymenus, and Cannae, were militia opposed to a standing army. This circumstance, it is probable, contributed more than any other to determine the fate of those battles.
The standing army which Annibal left behind him in Spain had the like superiority over the militia which the Romans sent to oppose it; and, in a few years, under the command of his brother, the younger Asdrubal, expelled them almost entirely from that country.
Annibal was ill supplied from home. The Roman militia, being continually in the field, became, in the progress of the war, a well disciplined and well exercised standing army; and the superiority of Annibal grew every day less and less. Asdrubal judged it necessary to lead the whole, or almost the whole, of the standing army which he commanded in Spain, to the assistance of his brother in Italy. In this march, he is said to have been misled by his guides; and in a country which he did not know, was surprised and attacked, by another standing army, in every respect equal or superior to his own, and was entirely defeated.
When Asdrubal had left Spain, the great Scipio found nothing to oppose him but a militia inferior to his own. He conquered and subdued that militia, and, in the course of the war, his own militia necessarily became a well disciplined and well exercised standing army. That standing army was afterwards carried to Africa, where it found nothing but a militia to oppose it. In order to defend Carthage, it became necessary to recal the standing army of Annibal. The disheartened and frequently defeated African militia joined it, and, at the battle of Zama, composed the greater part of the troops of Annibal. The event of that day determined the fate of the two rival republics.