9. In order to obtain every possible advantage from a diversion, we should ascertain first, that the country in which it is to be created is easily penetrated. A diversion should be made vigorously, and on those points where it is calculated to do the greatest mischief to the enemy.
10. To make war with success, the following principles should never be departed from:
To be superior to your enemy in numbers, as well as in morale; to fight battles in order to spread terror in the country; to divide your army into as many corps as may be effected without risk, in order to undertake several objects at the same time; to treat WELL those who yield, to ILL treat those who resist; to secure your rear, and occupy and strengthen yourself at the outset in some post which shall serve as a central point for the support of your future movements; to guard against desertion; to make yourself master of the great rivers and principal passes, and to establish your line of communication by getting possession of the fortresses, by laying siege to them, and of the open country, by giving battle; for it is vain to expect that conquests are to be achieved without combats; although when a victory is won, they will be best maintained by uniting mildness with valor.
MAXIM VIII
A general-in-chief should ask himself frequently in the day: “What should I do if the enemy’s army appeared now in my front, or on my right, or my left?” If he have any difficulty in answering these questions, his position is bad, and he should seek to remedy it.
In the campaign of 1758, the position of the Prussian army at Hohen Kirk, being commanded by the batteries of the enemy, who occupied all the heights, was eminently defective; notwithstanding, Frederick, who saw his rear menaced by the corps of Laudon, remained six days in his camp without seeking to correct his position. It would seem, indeed, that he was ignorant of his real danger: for Marshal Daun, having manœuvred during the night in order to attack by daybreak, surprised the Prussians in their lines before they were able to defend themselves, and by this means surrounded them completely.
Frederick succeeded, however, in effecting his retreat with regularity, but not without the loss of ten thousand men, many general officers, and almost all of his artillery. If Marshal Daun had followed up his victory with greater boldness, the king of Prussia would never have been able to rally his army. On this occasion, Frederick’s good fortune balanced his imprudence.
Marshal Saxe remarks, that there is more talent than is dreamt of in bad dispositions, if we possess the art of converting them into good ones when the favorable moment arrives. Nothing astonishes the enemy so much as this manœuvre; he has counted upon something; all his arrangements have been founded upon it accordingly – and at the moment of attack it escapes him! “I must repeat,” says the marshal, “there is nothing that so completely disconcerts an enemy as this, or leads him to commit so many errors; for it follows, that if he does not change his arrangements, he is beaten; and if he does change them, in presence of his adversary, he is equally undone.”
It seems to me, however, that a general who should rest the success of a battle upon such a principle, would be more likely to lose than to gain by it; for if he had to deal with a skilful adversary and an alert tactician, the latter would find time to take advantage of the previous bad arrangements, before he would be able to remedy them.
MAXIM IX
The strength of an army, like the power in mechanics, is estimated by multiplying the mass by the rapidity; a rapid march augments the morale of an army, and increases its means of victory. Press on!
“Rapidity,” says Montécuculli, “is of importance in concealing the movements of an army, because it leaves no time to divulge the intention of its chief. It is, therefore, an advantage to attack the enemy unexpectedly, to take him off his guard, to surprise him, and let him feel the thunder before he sees the flash; but if too great celerity exhausts your troops, while, on the other hand, delay deprives you of the favorable moment, you must weigh the advantage against the disadvantage, and choose between.”
Marshal Villars observes, that “in war everything depends upon being able to deceive the enemy; and having once gained this point, in never allowing him time to recover himself.” Villars has united practice to precept. His bold and rapid marches were almost always crowned with success.
It was the opinion of Frederick that all wars should be short and rapid; because a long war insensibly relaxes discipline, depopulates the state, and exhausts its resources.
MAXIM X
When an army is inferior in number, inferior in cavalry, and in artillery, it is essential to avoid a general action. The first deficiency should be supplied by rapidity of movement; the want of artillery, by the nature of the manœuvres; and the inferiority in cavalry, by the choice of positions. In such circumstances, the morale of the soldier does much.
The campaign of 1814 in France was skilfully executed upon these principles. Napoleon, with an army inferior in number, an army discouraged by the disastrous retreats of Moscow and of Leipzig, and still more by the presence of the enemy in the French territory, contrived, notwithstanding, to supply his vast inequality of force by the rapidity and combination of his movements. By the success obtained at Champ-Aubert, Montmirail, Montereau, and Rheims, he began to restore the morale of the French army. The numerous recruits of which it was composed, had already acquired that steadiness of which the old regiments afforded them an example, when the capture of Paris, and the astonishing revolution it produced, compelled Napoleon to lay down his arms.
But this consequence resulted rather from the force of circumstances than from any absolute necessity; for Napoleon, by carrying his army to the other side of the Loire, might easily have formed a junction with the armies of the Alps and Pyrenees, and have reappeared on the field of battle at the head of a hundred thousand men. Such a force would have amply sufficed to re-establish the chances of war in his favor; more especially as the armies of the allied sovereigns were obliged to manœuvre upon the French territory with all the strong places of Italy and France in their rear.
MAXIM XI
To direct operations with lines far removed from each other, and without communications, is to commit a fault which always gives birth to a second. The detached column has only its orders for the first day. Its operations on the following day depend upon what may have happened to the main body. Thus, this column either loses time upon emergency, in waiting for orders, or it will act without them, and at hazard. Let it therefore be held as a principle, that an army should always keep its columns so united as to prevent the enemy from passing between them with impunity. Whenever, for particular reasons, this principle is departed from, the detached corps should be independent in their operations. They should move toward a point fixed upon for their future junction. They should advance without hesitating, and without waiting for fresh orders; and every precaution should be taken to prevent an attack upon them in detail.
The Austrian army, commanded by Field-marshal Alvinzi, was divided into two corps, destined to act independently, until they should accomplish their junction before Mantua. The first of these corps, consisting of forty-five thousand men, was under the orders of Alvinzi. It was to debouch by Monte Baldo, upon the positions occupied by the French army on the Adige. The second corps, commanded by General Provéra, was destined to act upon the lower Adige, and to raise the blockade of Mantua. Napoleon, informed of the enemy’s movements, but not entirely comprehending his projects, confined himself to concentrating his masses, and giving orders to the troops to hold themselves in readiness to manœuvre. In the meantime, fresh information satisfied the general-in-chief of the French army that the corps which had debouched by La Coronna, over Monte Baldo, was endeavoring to form a junction with its cavalry and artillery – both which, having crossed the Adige at Dolce, were directing their march