Niccolò Machiavelli
Discourses on the First Decade of Titus Livius (Chap. 3.14)
Of the effect produced in Battle by strange and unexpected Sights or Sounds.

That the disorder occasioned by strange and unexpected sights or sounds may have momentous consequences in combat, might be shown by many instances, but by none better than by what befell in the battle fought between the Romans and the Volscians, when Quintius, the Roman general, seeing one wing of his army begin to waver, shouted aloud to his men to stand firm, for the other wing was already victorious. Which words of his giving confidence to his own troops and striking the enemy with dismay won him the battle. But if a cry like this, produce great effect on a well disciplined army, far greater must be its effect on one which is ill disciplined and disorderly. For by such a wind the whole mass will be moved, as I shall show by a well-known instance happening in our own times.

A few years ago the city of Perugia was split into the two factions of the Baglioni and the Oddi, the former holding the government, the latter being in exile. The Oddeschi, however, with the help of friends, having got together an armed force which they lodged in villages of their own near Perugia, obtained, by the favour of some of their party, an entrance into the city by night, and moving forward without discovery, came as far as the public square. And as all the streets of Perugia are barred with chains drawn across them at their corners, the Oddeschi had in front of them a man who carried an iron hammer wherewith to break the fastenings of the chains so that horsemen might pass. When the only chain remaining unbroken was that which closed the public square, the alarm having now been given, the hammerman was so impeded by the crowd pressing behind him that he could not raise his arm to strike freely. Whereupon, to get more room for his work, he called aloud to the others to stand back; and the word back passing from rank to rank those furthest off began to run, and, presently, the others also, with such precipitancy, that they fell into utter disorder. In this way, and from this trifling circumstance, the attempt of the Oddeschi came to nothing.

Here we may note that discipline is needed in an army, not so much to enable it to fight according to a settled order, as that it may not be thrown into confusion by every insignificant accident. For a tumultuary host is useless in war, simply because every word, or cry, or sound, may throw it into a panic and cause it to fly. Wherefore it behoves a good captain to provide that certain fixed persons shall receive his orders and pass them on to the rest, and to accustom his soldiers to look to these persons, and to them only, to be informed what his orders are. For whenever this precaution is neglected the gravest mishaps are constantly seen to ensue.

As regards strange and unexpected sights, every captain should endeavour while his army is actually engaged with the enemy, to effect some such feint or diversion as will encourage his own men and dismay his adversary since this of all things that can happen is the likeliest to ensure victory. In evidence whereof we may cite the example of Cneius Sulpitius, the Roman dictator, who, when about to give battle to the Gauls, after arming his sutlers and camp followers, mounted them on mules and other beasts of burden, furnished them with spears and banners to look like cavalry, and placing them behind a hill, ordered them on a given signal, when the fight was at the hottest, to appear and show themselves to the enemy. All which being carried out as he had arranged, threw the Gauls into such alarm, that they lost the battle.

A good captain, therefore, has two things to see to: first, to contrive how by some sudden surprise he may throw his enemy into confusion; and next, to be prepared should the enemy use a like stratagem against him to discover and defeat it; as the stratagem of Semiramis was defeated by the King of India. For Semiramis seeing that this king had elephants in great numbers, to dismay him by showing that she, too, was well supplied, caused the skins of many oxen and buffaloes to be sewn together in the shape of elephants and placed upon camels and sent to the front. But the trick being detected by the king, turned out not only useless but hurtful to its contriver. In a battle which the Dictator Mamercus fought against the people of Fidenae, the latter, to strike terror into the minds of the Romans, contrived that while the combat raged a number of soldiers should issue from Fidenae bearing lances tipped with fire, thinking that the Romans, disturbed by so strange a sight, would be thrown into confusion.

We are to note, however, with regard to such contrivances, that if they are to serve any useful end, they should be formidable as well as seem so; for when they menace a real danger, their weak points are not so soon discerned. When they have more of pretence than reality, it will be well either to dispense with them altogether, or resorting to them, to keep them, like the muleteers of Sulpitius, in the background, so that they be not too readily found out. For any weakness inherent in them is soon discovered if they be brought near, when, as happened with the elephants of Semiramis and the fiery spears of the men of Fidenae, they do harm rather than good. For although by this last-mentioned device the Romans at the first were somewhat disconcerted, so soon as the dictator came up and began to chide them, asking if they were not ashamed to fly like bees from smoke, and calling on them to turn on their enemy, and "with her own flames efface that Fidenae whom their benefits could not conciliate," they took courage; so that the device proved of no service to its contrivers, who were vanquished in the battle.