TROMPILLON, Fr. The diminutive of trompe. A term used in architecture, which owes its origin to the resemblance that exists between the wide part of a trumpet, and the arch or vault so called.
TROOP, in cavalry. A certain number of men on horseback who form a component part of a squadron. It is the same, with respect to formation, as company in the infantry. When a troop dismounts and acts on foot, it is still called a troop.
Troop. A certain beat of the drum. See [Drum].
To TROOP the colors. See [Colors].
Troops. The same as copiæ in Latin. Any collective body of soldiers.
Heavy TROOPS. Soldiers armed and accoutred for the purpose of acting together, in line, &c.
Light TROOPS, (Troupes legères, Fr.) Hussars, light horse, mounted riflemen, light infantry are so called, in opposition to cavalry or heavy horse. Skirmishing is solely the business of light horse, who, according to count Turpin, should be constantly exposed as the forlorn hope of the army; or as troops whose duty it is to be continually watchful for its repose and security.
When the light horse compose an advanced camp, the men should keep their horses constantly saddled; it being only an indulgence to allow those off duty to have their horses unsaddled. It is very true, that a camp of cavalry cannot be managed after the same manner; but then cavalry is seldom so situated as to be attacked, or to attack every day, which is the real business of light horse. They should serve as vedets to the whole army, in order to prevent the enemy from approaching it; whereas cavalry should never be employed, but in the greatest operations; and on occasions which are to decide the fate of a campaign.
Light troops, according to the same writer, are employed to gain intelligence concerning the enemy, to learn whether he hath decamped, whether he hath built any bridges, and other things of the same nature, of which the general must necessarily be informed, and should have a day fixed for this return. There are other detachments, which should be sent out under intelligent officers, and which should never lose sight of the enemy, in order to send in daily intelligence, to attack small convoys and baggage, to pick up marauders, and harrass the advanced guards. There should not be any time fixed for the return of these detachments, neither should they be confined to particular places; they should, however, return to the camp at the expiration of eight or ten days at farthest. The inconvenience, arising from confining these detachments to a particular time, would perhaps be, that the very day appointed for their return, would be that on which they might have the fairest opportunity of learning intelligence of the enemy: consequently their being forced to return, would defeat the objects for which they were sent out. See page 122, vol. II. of Count Turpin’s Art of War. See Am. Mil. Lib.
Light TROOPS have been sometimes called irregulars, as they act in detached and loose bodies. The tirailleurs, Tyrolians, Yagers, sharp-shooters, and the Chasseurs a cheval et a pied, to which the French owe so much during the whole course of their stupendous revolution, were of this description. What was called advancing en masse, by the French, was nothing more than very large bodies of irregulars (or light troops), which covered the country, in the front of their armies, like an inundation. To their irregulars, and to their light artillery are the French indebted for most of the victories they have gained. The troops stiled in France chasseurs, are, more or less, to be met with in every service in Europe, except the British. The Austrians have many regiments of them; the Prussians have them attached, in a certain proportion, to each corps; but the French, seeing the good effect of these irregulars, have brought them more into the field than all the combined powers together.