must change him; but if he is victorious, then they must be careful to keep him within the law, so that he may not exceed his powers. Experience has shown that princes as well as republics achieve the greatest success in war when they themselves direct the movements of their own armies, whilst mercenary troops do nothing but damage; and that a republic that has armies of her own is much less easily subjected to servitude by one of her own citizens, than one that depends upon foreign troops.
Thus Rome and Sparta maintained their liberties for many centuries by having armies of their own; the Swiss are most thoroughly armed, and consequently enjoy the greatest independence and liberty. The Carthaginians, on the other hand, furnish an example of the danger of employing mercenaries, for they came very near being subjugated by them at the close of the first war with Rome, although they had appointed some of their own citizens as commanders. After the death of Epaminondas, the Thebans made Philip of Macedon commander of their army, who after having been victorious deprived the Thebans of their liberty. The Milanese, after the death of Duke Philip, employed Francesco Sforza against the Venetians; after having defeated them at Caravaggio, he combined with them to subjugate his employers, the Milanese. The father of Francesco Sforza, who was commander in the service of Queen Joanna of Naples, suddenly left her entirely without troops, in consequence of which she was compelled to throw herself upon the protection of the king of Aragon, to save her kingdom. And if the Venetians and the Florentines formerly extended their dominions by means of mercenaries, and without their commanders attempting to make themselves princes of the country, but rather defending it loyally, I can only say that the Florentines were greatly favored by fortune in that respect. For of the valiant captains whose ambition they might have feared, some were not victorious, some never met an enemy, and others directed their ambition elsewhere. Amongst those whe were not victorious was Giovanni Aguto,[1] whose good faith was never put to the test, he having been unsuccessful in the field; although it will be generally admitted that, had he been successful, the Florentines would have been at his mercy. The Sforzas and the Bracceschi were always opposed to each other, which caused Francesco to direct his ambition towards
- ↑ John Sharpe, an English soldier of fortune.
