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FLAVIUS
VEGETIUS RENATUS BOOK
THREE RULES FOR ENCAMPING AN ARMY An army on the march cannot expect always to find walled cities for quarters, and it is very imprudent and dangerous to encamp in a straggling manner without some sort of entrenchment. It is an easy matter to surprise troops while refreshing themselves or dispersed in the different occupations of the service. The darkness of night, the necessity of sleep and the dispersion of the horses at pasture afford opportunities of surprise. A good situation for a camp is not sufficient; we must choose the very best that can be found lest, having failed to occupy a more advantageous post the enemy should get possession of it to our great detriment. An army should not encamp in summer near bad waters or far from good ones, nor in winter in a situation without plenty of forage and wood. The camp should not be liable to sudden inundations. The avenues should not be too steep and narrow lest, if invested, the troops should find it difficult to make their retreat; nor should it be commanded by any eminences from which it may be annoyed by the enemy's weapons. After these precautions, the camp is formed square, round, triangular or oblong, according to the nature of the ground. For the form of a camp does not constitute its goodness. Those camps, however, are thought best where the length is one third more than the depth. The dimensions must be exactly computed by the engineers, so that the size of the camp may be proportioned to the number of troops. A camp which is too confined will not permit the troops to perform their movements with freedom, and one which is too extensive divides them too much. There are three methods of entrenching a camp. The first is for the case when the army is on the march and will continue in the camp for only one night. They then throw up a slight parapet of turf and plant it with a row of palisades or caltrops of wood. The sods are cut with iron instruments. If the earth is held strongly together by the roots of the grass, they are cut in the form of a brick a foot and one half high, a foot broad and a foot and one half long. If the earth is so loose that the turf cannot be cut in this form, they run a slight trench round the camp, five feet broad and three feet deep. The earth taken from the trench forms a parapet on the inside and this secures the army from danger. This is the second method. But permanent camps, either for summer or winter, in the neighborhood of an enemy, are fortified with greater care and regularity. After the ground is marked out by the proper officers, each century receives a certain number of feet to entrench. They then range their shields and baggage in a circle about their own colors and, with. out other arms than their swords, open a trench nine, eleven or thirteen feet broad. Or, if they are under great apprehensions of the enemy, they enlarge it to seventeen feet (it being a general rule to observe odd numbers). Within this they construct a rampart with fascines or branches of trees well fastened together with pickets, so that the earth may be better supported. Upon this rampart they raise a parapet with battlements as in the fortifications of a city. The centurions measure the work with rods ten feet long and examine whether every one has properly completed the proportion assigned to him. The tribunes likewise inspect the work and should not leave the place till the whole is finished. And that the workmen may not be suddenly interrupted by the enemy, all the cavalry and that part of the infantry exempted by the privilege of their rank from working, remain in order of battle before the entrenchment to be ready to repel any assault. The first thing to be done after entrenching the camp, is to plant the ensigns, held by the soldiers in the highest veneration and respect, in their proper places. After this the praetorium is prepared for the general and his lieutenants, and the tents pitched for the tribunes, who have soldiers particularly appointed for that service and to fetch their water, wood, and forage. Then the legions and auxiliaries, cavalry and infantry, have the ground distributed to them to pitch their tents according to the rank of the several corps. Four foot-soldiers of each century and four troopers of each troop are on guard every night. As it seemed impossible for a sentinel to remain a whole night on his post, the watches were divided by the hourglass into four parts, that each man might stand only three hours. All guards are mounted by the sound of trumpet and relieved by the sound of cornet. The tribunes choose proper and trusty men to visit the different posts and report to them whatever they find amiss. This is now a military office and the persons appointed to it are called officers of the rounds. The cavalry furnish the
grand guards at night and the outposts by day. They are relieved every morning
and afternoon because of the fatigue of the men and horses. It is particularly
incumbent upon the general to provide for the protection of the pastures and of
the convoys of grain and other provisions either in camp or garrison, and to secure
wood, water and forage against the incursions of the enemy. This can only be effected
by posting detachments advantageously in the cines or walled castles on the roads
along which the convoys advance. And if no ancient fortifications are to be met
with, small forts must be built in proper situations, surrounded with large ditches,
for the reception of detachments of horse and foot, so that the convoys will be
effectually protected. For an enemy will hardly venture far into a country where
he knows his adversary's troops are so disposed as to be ready to encompass him
on all sides.
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