Discourses on the First Decade of Titus Livius

by Niccolò Machiavelli

Here, then, we see that, while to dismantle this fortress occasioned Ottaviano no loss, its construction gave the French king no sort of advantage. For when he could come into Italy with an army, he could recover Genoa, though he had no citadel there; but when he could not come with an army, it was not in his power to hold the city by means of the citadel. Moreover it was costly for the king to build, and shameful for him to lose this fortress; while for Ottaviano it was glorious to take, and advantageous to destroy it.

Let us turn now to those republics which build fortresses not within their own territories, but in towns whereof they have taken possession. And if the above example of France and Genoa suffice not to show the futility of this course, that of Florence and Pisa ought, I think, to be conclusive. For in erecting fortresses to hold Pisa, the Florentines failed to perceive that a city which had always been openly hostile to them, which had lived in freedom, and which could cloak rebellion under the name of liberty, must, if it were to be retained at all, be retained by those methods which were used by the Romans, and either be made a companion or be destroyed. Of how little service these Pisan fortresses were, was seen on the coming of Charles VIII. of France into Italy, to whom, whether through the treachery of their defenders or from fear of worse evils, they were at once delivered up; whereas, had there been no fortresses in Pisa, the Florentines would not have looked to them as the means whereby the town was to be held; the king could not by their assistance have taken the town from the Florentines; and the methods whereby it had previously been preserved might, in all likelihood, have continued sufficient to preserve it; and, at any rate, had served that end no worse than the fortresses.

These, then, are the conclusions to which I come, namely, that fortresses built to hold your own country under are hurtful, and that those built to retain acquired territories are useless; and I am content to rely on the example of the Romans, who in the towns they sought to hold by the strong hand, rather pulled down fortresses than built them. And if any, to controvert these views of mine, were to cite the case of Tarentum in ancient times, or of Brescia in recent, as towns which when they rebelled were recovered by means of their citadels; I answer, that for the recovery of Tarentum, Fabius Maximus was sent at the end of a year with an army strong enough to retake it even had there been no fortress there; and that although he availed himself of the fortress for the recovery of the town, he might, without it, have resorted to other means which would have brought about the same result. Nor do I see of what service a citadel can be said to be, when to recover the city you must employ a consular army under a Fabius Maximus. But that the Romans would, in any case, have recovered Tarentum, is plain from what happened at Capua, where there was no citadel, and which they retook, simply by the valour of their soldiers.

Again, as regards Brescia, I say that the circumstances attending the revolt of that town were such as occur but seldom, namely, that the citadel remaining in your hands after the defection of the city, you should happen to have a great army nigh at hand, as the French had theirs on this occasion. For M. de Foix being in command of the king’s forces at Bologna, on hearing of the loss of Brescia, marched thither without an hour’s delay, and reaching Brescia in three days, retook the town with the help of the citadel. But here, again, we see that, to be of any service, the citadel of Brescia had to be succoured by a de Foix, and by that French army which in three days’ time marched to its relief. So that this instance cannot be considered conclusive as against others of a contrary tendency. For, in the course of recent wars, many fortresses have been taken and retaken, with the same variety of fortune with which open country has been acquired or lost; and this not only in Lombardy, but also in Romagna, in the kingdom of Naples, and in all parts of Italy.

And, further, touching the erection of fortresses as a defence against foreign enemies, I say that such defences are not needed by the prince or people who possess a good army; while for those who do not possess a good army, they are useless. For good armies without fortresses are in themselves a sufficient defence: whereas, fortresses without good armies avail nothing. And this we see in the case of those nations which have been thought to excel both in their government and otherwise, as, for instance, the Romans and the Spartans. For while the Romans would build no fortresses, the Spartans not merely abstained from building them, but would not even suffer their cities to be enclosed with walls; desiring to be protected by their own valour only, and by no other defence. So that when a Spartan was asked by an Athenian what he thought of the walls of Athens, he answered “that they were fine walls if meant to hold women only.”

If a prince who has a good army has likewise, on the sea-front of his dominions, some fortress strong enough to keep an enemy in check for a few days, until he gets his forces together, this, though not necessary, may sometimes be for his advantage. But for a prince who is without a strong army to have fortresses erected throughout his territories, or upon his frontier, is either useless or hurtful, since they may readily be lost and then turned against him; or, supposing them so strong that the enemy is unable to take them by assault, he may leave them behind, and so render them wholly unprofitable. For a brave army, unless stoutly met, enters an enemy’s country without regard to the towns or fortified places it leaves in its rear, as we read of happening in ancient times, and have seen done by Francesco Maria della Rovere, who no long while ago, when he marched against Urbino, made little of leaving ten hostile cities behind him.

The prince, therefore, who can bring together a strong army can do without building fortresses, while he who has not a strong army ought not to build them, but should carefully strengthen the city wherein he dwells, and keep it well stored with supplies, and its inhabitants well affected, so that he may resist attack till an accord be agreed on, or he be relieved by foreign aid. All other expedients are costly in time of peace, and in war useless.

Whoever carefully weighs all that has now been said will perceive, that the Romans, as they were most prudent in all their other methods, so also showed their wisdom in the measures they took with the men of Latium and Privernum, when, without ever thinking of fortresses, they sought security in bolder and more sagacious courses.

CHAPTER XXV.—That he who attacks a City divided against itself, must not think to get possession of it through its Divisions.

Violent dissensions breaking out in Rome between the commons and the nobles, it appeared to the Veientines and Etruscans that now was their time to deal a fatal blow to the Roman supremacy. Accordingly, they assembled an army and invaded the territories of Rome. The senate sent Caius Manlius and Marcus Fabius to meet them, whose forces encamping close by the Veientines, the latter ceased not to reproach and vilify the Roman name with every sort of taunt and abuse, and so incensed the Romans by their unmeasured insolence that, from being divided they became reconciled, and giving the enemy battle, broke and defeated them. Here, again, we see, what has already been noted, how prone men are to adopt wrong courses, and how often they miss their object when they think to secure it. The Veientines imagined that they could conquer the Romans by attacking them while they were at feud among themselves; but this very attack reunited the Romans and brought ruin on their assailants. For the causes of division in a commonwealth are, for the most part, ease and tranquillity, while the causes of union are fear and war. Wherefore, had the Veientines been wise, the more divided they saw Rome to be, the more should they have sought to avoid war with her, and endeavoured to gain an advantage over her by peaceful arts. And the best way to effect this in a divided city lies in gaining the confidence of both factions, and in mediating between them as arbiter so long as they do not come to blows; but when they resort to open violence, then to render some tardy aid to the weaker side, so as to plunge them deeper in hostilities, wherein both may exhaust their forces without being led by your putting forth an excess of strength to suspect you of a desire to ruin them and remain their master. Where this is well managed, it will almost always happen that you succeed in effecting the object you propose to yourself.