Elements of Military Art and Science by Henry Wager Halleck (books you have to read txt) 📕

of inferior numbers, avoids brisk actions and general engagements, and yet delays the enemy long enough to give time for the main army to come up, for the infantry to deploy, for the general-in-chief to make his dispositions, and for the baggage and parks to file into their stations. The art of a general of the vanguard, or of the rear-guard, is, without hazarding a defeat, to hold the enemy in check, to impede him, to compel him to spend three or four hours in moving a single league: tactics point out the methods of effecting these important objects, and are more necessary for cavalry than for infantry, and in the vanguard, or the rear-guard, than in any other position. The Hungarian Insurgents, whom we saw in 1797, 1805, and 1809, were pitiful troops. If the light troops of Maria Theresa's times became formidable, it was by their excellent organization, and, above every thing, by their numbers. To imagine that such troops could be superior to Wurmser's hussars, or to the dragoons of Latour, or to the Archduke John, would be entertaining strange ideas of things; but neither the Hungarian Insurgents, nor the Cossacks, ever formed the vanguards of the Austrian and Russian armies; because to speak of a vanguard or a rear-guard, is to speak of troops which manœuvre. The Russians considered a regiment of Cossacks who had been trained worth three regiments untrained. Every thing about these troops is despicable, except the Cossack himself, who is a man of fine person, powerful, adroit, subtle, a good horseman, and indefatigable; he is born on horseback, and bred among civil wars; he is in the field, what the Bedouin is in the desert, or the Barbet in the Alps; he never enters a house, never lies in a bed; and he always changes his bivouac at sunset, that he may not pass a night in a place where the enemy may possibly have observed him."

"Two Mamelukes kept three Frenchmen at bay, because they were better armed, better mounted, and better exercised; they had two pairs of pistols, a tromblon, a carbine, a helmet with a visor, a coat of mail, several horses, and several men on foot to attend them. But a hundred French did not fear a hundred Mamelukes; three hundred were more than a match for an equal number; and one thousand would beat fifteen hundred: so powerful is the influence of tactics, order, and evolutions! Murat, Leclerc, and Lasalle, cavalry generals, presented themselves to the Mamelukes in several lines: when the latter were upon the point of outfronting the first line, the second came to its assistance on the right and left; the Mamelukes then stopped, and wheeled, to turn the wings of this new line: this was the moment seized for charging them; they were always broken."

"The duty of a vanguard, or a rear-guard, does not consist in advancing or retiring, but in manœuvring. It should be composed of a good light cavalry, supported by a good reserve of cavalry of the line, by excellent battalions of foot, and strong batteries of artillery: the troops must be well trained; and the generals, officers, and soldiers, should all be equally well acquainted with their tactics, each according to his station. An undisciplined troop would only embarrass the advanced guard."

"It is admitted that for facility in manœuvring, the squadron should consist of one hundred men, and that every three or four squadrons should have a superior officer."

"It is not advisable for all the cavalry of the line to wear cuirasses: dragoons, mounted upon horses of four feet nine inches in height, armed with straight sabres, and without cuirasses, should form a part of the heavy cavalry; they should be furnished with infantry-muskets, with bayonets: should have the shakot of the infantry, pantaloons covering the half-boot-buskin, cloaks with sleeves, and portmanteaus small enough to be carried slung across the back when the men are on foot. Cavalry of all descriptions should be furnished with fire-arms, and should know how to manœuvre on foot. Three thousand light cavalry, or three thousand cuirassiers, should not suffer themselves to be stopped by a thousand infantry posted in a wood, or on ground impracticable to cavalry; and three thousand dragoons ought not to hesitate to attack two thousand infantry, should the latter, favored by their position, attempt to stop them.

"Turenne, Prince Eugene of Savoy, and Vendome, attached great importance to dragoons, and used them successfully. The dragoons gained great glory in Italy, in 1796 and 1797. In Egypt and in Spain, during the campaigns of 1806 and 1807, a degree of prejudice sprung up against them. The divisions of dragoons had been mustered at Compiegne and Amiens, to be embarked without horses for the expedition of England, in order to serve on foot until they should be mounted in that country. General Baraguay d'Hilliers, their first inspector, commanded them; he had them equipped with gaiters, and incorporated with them a considerable number of recruits, whom he exercised in infantry manœuvres alone. These were no longer cavalry regiments: they served in the campaign of 1806 on foot, until after the battle of Jena, when they were mounted on horses taken from the Prussian cavalry, three-fourths of which were unserviceable. These combined circumstances injured the dragoons; but in 1813 and 1814 their divisions acquired honor in rivalling the cuirassiers. Dragoons are necessary for the support of light cavalry in the vanguard, the rear-guard, and the wings of an army; cuirassiers are little adapted for van and rearguards: they should never be employed in this service but when it is requisite to keep them in practice and accustom them to war."

Napoleon further recommends that light cavalry be divided into two kinds, chasseurs or troopers, and light horse; and the heavy to be composed of dragoons and cuirassiers; the troopers to be mounted on horses of 4 ft 6 in.; light cavalry on horses of 4 ft. 7 or 8 in.; dragoons on horses of 4 ft. 9 in.; and cuirassiers on horses of 4 ft. 10 or 11 in.; which employ horses of all kinds for mounting the troops.

All cavalry must receive the same instruction; and all should be capable, in case of need, of performing any of the duties of mounted troops. The shock is the principal effect produced by this arm; therefore, the greater the velocity the greater must be this effect, provided the troops can be kept in mass. But it is found, by experience, that it is impossible to preserve them in line when put to the height of their speed. The best authorities therefore prefer, as we have said elsewhere, the charge at the trot, or at any rate the gallop should not be taken up till within a very short distance of the enemy. The charge of a compact mass at a trot is much greater than that of a wavering one at a gallop.

On the field of battle the cavalry of the line is considered as the arm of the shock, to break through any corps that may be in opposition; but it is unable of itself to resist a shock, and therefore should on no account wait to receive the charge of another body of mounted troops. It was on this account that Frederick directed his cavalry officers, under the severest penalties, never to receive a charge, but always to meet the attacking force half way. This is the only mode of preventing defeat.

A good infantry can always sustain itself against the charges of cavalry. At the battle of Auerstedt, in 1806, Davoust ordered the divisions of Gudin to form squares to resist the Prussian cavalry, which, by means of a fog, had gained a most advantageous position. Blücher led his cavalry in repeated and impetuous charges, but all was in vain; the French infantry presented a front of iron. At the combat of Krasnoi, in 1812, the cavalry of Grouchy, Nansonty, and Bordesoult, attacked and overthrew the dragoons of Clarkof, but the Russian infantry under Neveroffskoi sustained itself against the repeated charges of vastly superior numbers of these French horse. At the battle of Molwitz, the grenadiers sustained the charges of the enemy's cavalry, although the cavalry of the great Frederick had already been completely overthrown.

But when the infantry is engaged with the infantry of the enemy, the charges of cavalry are generally successful, and sometimes decide the fate of the battle, as was the case at Rosbach, Zornsdorf, Wurtsburg, Marengo, Eylau, Borodino, &c.

Cavalry may also be very efficacious against infantry in wet weather, when the rain or snow renders it impossible for the foot soldiers to use their fire-arms to advantage, as was the case with the corps of Augereau, at Eylau, and with the Austrian left, at the battle of Dresden. Again, if the infantry be previously weakened, or thrown into disorder by the fire of batteries. The charge of the Russian cavalry at Hohenfriedberg, in 1745, is a remarkable example of this kind.

Cavalry should always be immediately sustained in its efforts either by infantry or other bodies of horse; for as soon as the charge is made, the strength of this arm is for a time exhausted, and, if immediately attacked, defeat becomes inevitable. The charge of the cavalry of Ney on Prince Hohenlohe at the battle of Jena, and of the French horse on Gossa at Leipsic, are fine examples of the successful charges of cavalry when properly sustained. Kunnersdorf and Waterloo are examples of the disastrous consequences of leaving such charges without support.

The choice of the field of battle is sometimes such as to render cavalry almost useless. Such was the case at the battle of Cassano, between the Duke of Vendome and the Prince Eugene. The field was so cut up by the Adda and the canals of Rittorto and Pendina, that Prince Eugene could make no use of his horse. If, when master of the bridge of Rittorto, he had been able to charge the French with a body of cavalry, there had been no doubt of his complete success.

After a battle, and in the pursuit of a flying enemy, cavalry is invaluable. If Napoleon had possessed a suitable number of mounted troops, with an able commander, at the battles of Lutzen and Ligny, the results of these victories had been decisive; whereas they were really without consequence. On the other hand, the Prussian army in 1806, after the battle of Jena, and Napoleon's army in 1815 at Waterloo, were completely cut to pieces by the skilful use of cavalry in the pursuit of a defeated and dispirited foe.

The want of good cavalry was severely felt in the war of the American Revolution. Had Washington possessed a few good squadrons of horse, his surprise and defeat in the lines of Brooklyn, and the consequent loss of New York, had never taken place. The efficient employment of a few good squadrons of cavalry might readily have prevented the defeat at Bladensburg, and the loss of the capitol, in 1814.

In a well-organized army, the cavalry should be from one-fourth to one-sixth of the infantry, according to the nature of the war.[32]

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