Array Louis Antoine Fauvelet de Bourrienne - The Collected Works of Napoleon Bonaparte

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.

In the meantime, this attempt of the enemy having convinced the French general of the danger to which his bridge had exposed him, removed it nearer to that of Strasburg, in order to diminish the extent of ground he had to defend.

Montécuculli, having commanded the magistrates of Strasburg to collect materials for a bridge, moved to Scherzheim to receive them; but Turenne again defeated his projects by taking a position at Freistett, where he occupied the islands of the Rhine, and immediately constructed a stockade.

Thus it was that, during the whole of this campaign, Turenne succeeded in gaining the initiative of the enemy, and obliging him to follow his movements. He succeeded, also, by a rapid march, in cutting off Montécuculli from the Town of Offenburg, whence he drew his supplies, and would no doubt have prevented the Austrian general from effecting his junction with the corps of Caprara, had not a cannon-shot terminated this great man’s life.

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A general of ordinary talent occupying a bad position, and surprised by a superior force, seeks his safety in retreat; but a great captain supplies all deficiencies by his courage, and marches boldly to meet the attack. By this means he disconcerts his adversary; and if the latter shows any irresolution in his movements, a skilful leader, profiting by his indecision, may even hope for victory, or at least employ the day in manœuvring—at night he entrenches himself, or falls back to a better position. By this determined conduct he maintains the honor of his arms, the first essential to all military superiority.

In 1653, Marshal Turenne was surprised by the Prince of Condé, in a position where his army was completely compromised. He had the power, indeed, by an immediate retreat, of covering himself by the Somme, which he possessed the means of crossing at Peronne, and whence he was distant only half a league; but, fearing the influence of this retrograde movement on the morale of his army, Turenne balanced all disadvantages by his courage, and marched boldly to meet the enemy with very inferior forces. After marching a league, he found an advantageous position, where he made every disposition for a battle. It was three o’clock in the afternoon; but the Spaniards, exhausted with fatigue, hesitated to attack him, and Turenne having covered himself with entrenchments during the night, the enemy no longer dared to risk a general action, and broke up his camp.

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The transition from the defensive to the offensive is one of the most delicate operations.

By studying the first campaign of Napoleon in Italy, we can learn what genius and boldness may effect in passing with an army from the defensive to the offensive . The army of the allies, commanded by General Beaulieu, was provided with every means that could render it formidable. Its force amounted to eighty thousand men, and two hundred pieces of cannon. The French army, on the contrary, could number scarcely thirty thousand men under arms, and thirty pieces of cannon. For some time there had been no issue of meat, and even the bread was irregularly supplied. The infantry was ill clothed, the cavalry wretchedly mounted. All the draught-horses had perished from want, so that the service of the artillery was performed by mules. To remedy these evils, large disbursements were necessary; and such was the state of the finances, that the government had only been able to furnish two thousand louis in specie for the opening of the campaign. The French army could not possibly exist in this state. To advance or retreat was absolutely necessary. Aware of the advantage of surprising the enemy at the very outset of the campaign by some decisive blow, Napoleon prepared for it by recasting the morale of his army.

In a proclamation full of energy, he reminded them that an ignoble death alone remained for them, if they continued on the defensive; that they had nothing to expect from France, but everything to hope from victory. “Abundance courts you in the fertile plains of Italy,” said he; “are you deficient, soldiers, in constancy or in courage?” Profiting by the moment of enthusiasm which he had inspired, Napoleon concentrated his forces in order to fall with his whole weight on the different corps of the enemy. Immediately afterward, the battles of Montenotte, Milesimo, and Mondovi, added fresh confidence to the high opinion already entertained by the soldier for his chief; and that army which only a few days ago was encamped amid barren rocks, and consumed by famine, already aspired to the conquest of Italy. In one month after the opening of the campaign, Napoleon had terminated the war with the King of Sardinia, and conquered the Milanese. Rich cantonments soon dispelled from the recollection of the French soldier the misery and fatigue attendant on this rapid march, while a vigilant administration of the resources of the country reorganized the materiel of the French army, and created the means necessary for the attainment of future success.

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It may be laid down as a principle, that the line of operation should not be abandoned; but it is one of the most skilful manœuvres in war, to know how to change it, when circumstances authorize or render this necessary. An army which changes skilfully its line of operation deceives the enemy, who becomes ignorant where to look for its rear, or upon what weak points it is assailable.

Frederick sometimes changed his line of operation in the middle of a campaign; but he was enabled to do this, because he was manœuvring at that time in the centre of Germany—an abundant country, capable of supplying all the wants of his army in case his communications with Prussia were intercepted.

Marshal Turenne, in the campaign of 1746, gave up his line of communication to the allies in the same manner; but, like Frederick, he was carrying on the war at this time in the centre of Germany, and having fallen with his whole forces upon Rain, he took the precaution of securing to himself a depôt upon which to establish his base of operation.

By a series of manœuvres, marked alike by audacity and genius, he subsequently compelled the imperial army to abandon its magazines, and retire into Austria for winter quarters.

But these are examples which it appears to me should only be imitated when we have taken full measure of the capacity of our adversary, and above all, when we see no reason to apprehend an insurrection in the country to which we transfer the theatre of war.

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When an army carries with it a battering train, or large convoys of sick and wounded, it cannot march by too short a line upon its depôts.