The Officer's Manual

At the commencement of a battle, if the ground is level, you should advance to meet the enemy, in order to inspire the soldier with courage; but if you are well posted, and your artillery advantageously placed, then wait for him with determination: remembering always to fight resolutely, to succor opportunely those who require it, and never to bring your reserves into action except in the last extremity; and even then to preserve some support, behind which the broken corps may rally.

When it is necessary to attack with your whole force, the battle should commence toward evening; because then, whatever be the issue, night will arrive to separate the combatants before your troops are exhausted. By this means, an opportunity is afforded of affecting an orderly retreat if the result of the battle requires it.

During an action, the general-in-chief should occupy some spot whence he can, as far as possible, overlook his whole army. He should be informed, immediately, of everything that passes in the different divisions. He should be ready, in order to render success more complete, to operate with fresh troops upon those points where the enemy is giving way, and also to reinforce his own corps wherever they are inclined to yield. When the enemy is beaten, he must pursue him instantly, without giving him a moment to rally; on the other hand, if he is himself defeated, or despairs of victory, he must retreat in the best possible order.

7. It shows great talent in a general to bring troops, who are prepared for action, into collision with those who are not: for example, fresh troops against those which are exhausted – brave and disciplined men against recruits. He must likewise be ready always to fall with his army upon a weak or detached corps, to follow the track of the enemy, and charge him among defiles before he can face about and get into position.

8. A position is good when the different corps are so placed as to be engaged with advantage, and without any remaining unemployed. If you are superior in cavalry, positions are to be taken in plains and open ground; if in infantry, in an enclosed and covered country. If inferior in numbers, in confined and narrow places; if superior, in a spacious and extensive field. With a very inferior army, a difficult pass must be selected to occupy and fortify.

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.

NOTE

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!

NOTE

“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.

NOTE

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.

NOTE

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 upon the plateau of Rivoli, by the great road leading by Incanole.

Napoleon immediately foresaw that, by having possession of the plateau, he should be able to prevent this junction, and obtain all the advantages of the initiative. He accordingly put his troops in motion, and at two o’clock in the morning occupied that important position. Once master of the point fixed upon for the junction of the Austrian columns, success followed all his dispositions. He repulsed every attack, made seven thousand prisoners, and took several standards and twelve pieces of cannon. At two o’clock in the afternoon, the battle of Rivoli was already gained, when Napoleon, learning that General Provéra had passed the Adige at Anghiari, and was directing his march upon Mantua, left to his generals the charge of following up the retreat of Alvinzi, and placed himself at the head of a division for the purpose of defeating the designs of Provéra.

By a rapid march, he again succeeded in the initiatory movement, and in preventing the garrison of Mantua from uniting its force with the relieving army. The corps intrusted with the blockade, eager to distinguish itself under the eyes of the conqueror of Rivoli, compelled the garrison to retire into the place, while the division of Victor, forgetting the fatigues of a forced march, rushed with impetuosity on the relieving army in front. At this moment a sortie from the lines of St. George took him in flank, while the corps of Augereau, which had followed the march of the Austrian general, attacked him in rear. Provéra, surrounded on all sides, capitulated. The result of these two battles cost the Austrians three thousand men in killed and wounded, twenty-two thousand prisoners, twenty-four standards, and forty-six pieces of cannon.

MAXIM XII

An army ought to have only one line of operation. This should be preserved with care, and never abandoned but in the last extremity.

NOTE

“The line of communication of an army,” says Montécuculli, “must be certain and well established, for every army that acts from a distant base, and is not careful to keep this line perfectly open, marches upon a precipice. It moves to certain ruin, as may be seen by an infinity of examples. In fact, if the road by which provisions, ammunition and reinforcements are to be brought up, is not entirely secured – if the magazines, the hospitals, the depôts of arms, and the places of supply are not fixed and commodiously situated – not only the army cannot keep the field, but it will be exposed to the greatest dangers.”

MAXIM XIII

The distances permitted between corps of an army upon the march must be governed by the localities, by circumstances, and by the object in view.

NOTE

When an army moves at a distance from the enemy, the columns may be disposed along the road so as to favor the artillery and baggage. But when it is marching into action, the different corps must be formed in close columns in order of battle. The generals must take care that the heads of the columns, which are to attack together, do not outstep each other, and that in approaching the field of action they preserve the relative intervals required for deployment.

“The marches that are made preparatory to a battle require,” says Frederick, “the greatest precaution.” With this view, he recommends his generals to be particularly on their guard, and to reconnoitre the ground at successive distances, in order to secure the initiative by occupying those positions most calculated to favor an attack. On a retreat, it is the opinion of many generals that an army should concentrate its forces, and march in close columns if it is still strong enough to resume the offensive; for by this means it is easy to form the line when a favorable opportunity presents itself, either for holding the enemy in check or for attacking him if he is not in a situation to accept battle.

Such was Moreau’s retreat after the passage of the Adda by the Austro-Russian army. The French general, after having covered the evacuation of Milan, took up a position between the Po and the Tanaro.

His camp rested upon Alexandria and Valentia, two capital fortresses, and had the advantage of covering the roads to Turin and Savona, by which he could effect his retreat in case he was unable to accomplish a junction with the corps d’armee of Macdonald, who had been ordered to quit the kingdom of Naples, and hasten his march into Tuscany.

Forced to abandon his position in consequence of the insurrection in Piedmont and Tuscany, Moreau retired upon Asti, where he learned that his communication with the river of Genoa had just been cut off by the capture of Ceva. After several ineffectual attempts to retake this place, he saw that his only safety depended upon throwing himself into the mountains.

To effect this object, he directed the whole of his battering train and heavy baggage by the Col de Fenestrelle upon France; then opening himself a way over the St. Bernard, he gained Loano with his light artillery and the small proportion of field equipment he had been able to preserve.

By this skilful movement, he not only retained his communications with France, but was enabled to observe the motions of the army from Naples, and to facilitate his junction with it by directing the whole of his force upon the points necessary for that purpose.

Macdonald, in the meantime, whose only chance of success depended on concentrating his little army, neglected this precaution, and was beaten in three successive actions at the Trebia.

By this retardment of his march, he rendered all Moreau’s measures to unite the two armies in the plains of the Po useless, and his retreat, after his brilliant but fruitless efforts at the Trebia, defeated the other arrangements, also, which the former had made to come to his support. The inactivity of Marshal Suwarrow, however, finally enabled the French general to accomplish his junction with the remains of the army from Naples. Moreau then concentrated his whole force upon the Appenines, and placed himself in a situation to defend the important positions of Liguria, until the chances of war should afford him an opportunity of resuming the offensive.

When, after a decisive battle, an army has lost its artillery and equipments, and is consequently no longer in a state to assume the offensive, or even to arrest the pursuit of the enemy, it would seem most desirable to divide what remains into several corps, and order them to march by separate and distant routes upon the base of operation, and throw themselves into the fortresses. This is the only means of safety: for the enemy, uncertain as to the precise direction taken by the vanquished army, is ignorant in the first instance which corps to pursue, and it is in this moment of indecision that a march is gained upon him. Besides, the movements of a small body being so much easier than those of a larger one, these separate lines of march are all in favor of a retreating army.

MAXIM XIV

Among mountains, a great number of positions are always to be found very strong in themselves, and which it is dangerous to attack. The character of this mode of warfare consists in occupying camps on the flanks or in the rear of the enemy, leaving him only the alternative of abandoning his position without fighting, to take up another in the rear, or to descend from it in order to attack you. In mountain warfare, the assailant has always the disadvantage; even in offensive warfare in the open field, the great secret consists in defensive combats, and in obliging the enemy to attack.

NOTE

During the campaign of 1793, in the Maritime Alps, the French army, under the orders of General Brunet, did all in its power to get possession of the camps at Raus and at Fourches, by an attack in front. But these useless efforts served only to increase the courage of the Piedmontese, and to destroy the élite of the grenadiers of the republican army. The manœuvres by which Napoleon, without fighting, compelled the enemy to evacuate these positions in 1796, suffice to establish the truth of these principles, and to prove how much success in war depends upon the genius of the general as well as on the courage of the soldier.

MAXIM XV

The first consideration with a general who offers battle, should be the glory and honor of his arms; the safety and preservation of his men is only the second; but it is in the enterprise and courage resulting from the former, that the latter will most assuredly be found. In a retreat, besides the honor of the army, the loss of life is often greater than in two battles. For this reason, we should never despair while brave men are to be found with their colors. It is by this means that we obtain victory, and deserve to obtain it.

NOTE

In 1645, the French army, under the orders of the Prince of Condé, was on the march to lay siege to Nordlingen, when it was discovered that Count Merci, who commanded the Bavarians, had foreseen this intention, and had entrenched himself in a strong position which defended Nordlingen at the same time that it covered Donawerth.

Notwithstanding the favorable position of the enemy, Condé ordered the attack. The combat was terrible. All the infantry in the centre and on the right, after being successively engaged, was routed and dispersed, in spite of the efforts of the cavalry and the reserve, which were likewise carried away with the fugitives. The battle was lost. Condé, in despair, having no longer either centre or right to depend upon, collected the remnants of his battalions, and directed his march to the left, where Turenne was still engaged. This perseverance reanimated the ardor of the troops. They broke the right wing of the enemy, and Turenne, by a change of front, returned to the attack upon his centre. Night, too, favored the boldness of Condé. An entire corps of Bavarians, fancying themselves cut off, laid down their arms; and the obstinacy of the French general in this struggle for victory was repaid by possession of the field of battle, together with a great number of prisoners, and almost all the enemy’s artillery. The Bavarian army beat a retreat, and the next day Nordlingen capitulated.

MAXIM XVI

It is an approved maxim in war, never to do what the enemy wishes you to do, for this reason alone, that he desires it. A field of battle, therefore, which he has previously studied and reconnoitred, should be avoided, and double care should be taken where he has had time to fortify and entrench. One consequence deducible from this principle is, never to attack a position in front which you can gain by turning.

NOTE

It was without due regard to this principle, that Marshal Villeroi, on assuming the command of the army of Italy, during the campaign of 1701, attacked, with unwarrantable presumption, Prince Eugene, of Savoy, in his entrenched position of Chiavi, on the Oglio. The French generals, Catinat among the rest, considered the post unassailable, but Villeroi insisted, and the result of this otherwise unimportant battle was the loss of the élite of the French army. It would have been greater still, but for Catinat’s exertions.

It was by neglecting the same principle, that the Prince of Condé, in the campaign of 1644, failed in all his attacks upon the entrenched position of the Bavarian army. The Count Merci, who commanded the latter, had drawn up his cavalry skilfully upon the plain, resting upon Freyberg, while his infantry occupied the mountain. After many fruitless attempts, the Prince of Condé, seeing the impossibility of dislodging the enemy, began to menace his communications – but the moment Merci perceived this, he broke up his camp and retired beyond the Black mountains.

MAXIM XVII

In a war of march and manœuvre, if you would avoid a battle with a superior army, it is necessary to entrench every night, and occupy a good defensive position. Those natural positions which are ordinarily met with, are not sufficient to protect an army against superior numbers without recourse to art.

NOTE

The campaign of the French and Spanish army, commanded by the Duke of Berwick, against the Portuguese, in the year 1706, affords a good lesson on this subject. The two armies made almost the tour of Spain. They began the campaign near Badajoz, and after manœuvring across both Castiles, finished it in the kingdoms of Valencia and Murcia. The Duke of Berwick encamped his army eighty-five times, and although the campaign passed without a general action, he took about ten thousand prisoners from the enemy. Marshal Turenne also made a fine campaign of manœuvre against the Count Montécuculli, in 1675.

The imperial army having made its arrangements to pass the Rhine at Strasburg, Turenne used all diligence, and, throwing a bridge over the river near the village of Ottenheim, three leagues below Strasburg, he crossed with the French army, and encamped close to the little town of Vilstet, which he occupied. This position covered the bridge of Strasburg, so that, by this manœuvre, Turenne deprived the enemy of all approach to that city.

Upon this, Montécuculli made a movement with his whole army, threatening the bridge at Ottenheim, by which the French received their provisions from upper Alsace.

As soon as Turenne discovered the design of the enemy, he left a detachment at Vilstet, and made a rapid march with his whole force upon the village of Altenheim. This intermediate position between the two bridges, which he wished to preserve, gave him the advantage of being able to succor either of these posts before the enemy had time to carry them. Montécuculli seeing that any successful attack upon the bridges was not to be expected, resolved to pass the Rhine below Strasburg, and with this view returned to his first position at Offenburg. Marshal Turenne, who followed all the movements of the Austrian army, brought back his army also to Vilstet.