The extended order of light infantry varies according to circumstances and situations. They may sometimes loosen their files to three times the distance of open order. But the general rule is to allow convenient intervals for the rear rank men to slip by, and return after they have fired.
All movements of light infantry, except when firing, advancing, or retreating, are to be in quick time.
The officer commanding the company in line will be on the right, covered by a serjeant; the next on the left also covered by a serjeant. The youngest officer in the rear. In extended order the post of the officers and serjeants is always in the rear at equal distances.
In marching by files the officer commanding leads: by divisions each officer leads one. The supernumerary officer, if there be one, is in both cases with the officer commanding, ready to obey any directions he may receive from him.
The arms of light infantry in general are carried sloped, when the bayonets are fixed. Flanking or advanced parties, however, or parties in particular situations, may carry them trailed, and without bayonets, for the purpose of taking a more cool and deliberate aim.
When the light infantry is ordered to cover the line to the front, the divisions will move from their inner flanks round the flanks of the battalions, and when at the distance of fifty paces, the leading flanks will wheel towards each other, so as to meet opposite the centre of the battalion, opening their files gradually from the rear, so as to cover the whole extent of the battalion.
The files are not to wait for any word of command, but to halt and front themselves. In this position, and in all positions of extended order, the post of the officer commanding is in the rear of the centre, and the movements are to be regulated by the company belonging to the battalion, which governs those of the line. See Am. Mil. Lib.
Light infantry men, like hussars, are frequently detached to act as scouts on the flanks, in the front, or with the rear guard of the body of troops to which they belong. They then acquire the appellation of skirmishers, and being previously told off for that specific duty, they advance and form in the front in rank entire; which is effected by each man from the rear rank placing himself on the left of his file leader. The rank entire may be resorted to for various purposes during the movements of one or more battalions, since it may serve not only to cover them from the enemy’s observation, but in some cases, especially in foggy weather, will itself appear a larger body than it really is. Too much attention cannot be given to the organization of light troops on foot. They are very properly called the eyes of an army, and ought always to be considered as indispensibly necessary.
LIGHT TROOPS. By light troops are generally meant all horse and foot which are accoutred for detached service.
LIGNE, Fr. See [Line].