The first condition is:—
(1.) To attack the front of the enemy’s quarters in a certain width of front, for that is the only means by which we can really surprise several cantonments, cut off others, and create generally that disorganisation in the enemy’s army which is intended.—The number of, and the intervals between, the columns must depend on circumstances.
(2.) The direction of the different columns must converge upon a point where it is intended they should unite; for the enemy ends more or less with a concentration of his force, and therefore we must do the same. This point of concentration should, if possible, be the enemy’s point of assembly, or lie on his line of retreat, it will naturally be best where that line crosses an important obstacle in the country.
(3.) The separate columns when they come in contact with the enemy’s forces must attack them with great determination, with dash and boldness, as they have general relations in their favour, and daring is always there in its right place. From this it follows that the commanders of the separate columns must be allowed freedom of action and full power in this respect.
(4.) The tactical plan of attack against those of the enemy’s corps that are the first to place themselves in position, must always be directed to turn a flank, for the greatest result is always to be expected by separating the corps, and cutting them off.
(5.) Each of the columns must be composed of portions of the three arms, and must not be stinted in cavalry, it may even sometimes be well to divide amongst them the whole of the reserve cavalry; for it would be a great mistake to suppose that this body of cavalry could play any great part in a mass in an enterprise of this sort. The first village, the smallest bridge, the most insignificant thicket would bring it to a halt.
(6.) Although it lies in the nature of a surprise that the assailant should not send his advanced guard very far in front, that principle only applies to the first approach to the enemy’s quarters. When the fight has commenced in the enemy’s quarters, and therefore all that was to be expected from actual surprise has been gained, then the columns of the advanced guard of all arms should push on as far as possible, for they may greatly increase the confusion on the side of the enemy by more rapid movement. It is only by this means that it becomes possible to carry off here and there the mass of baggage, artillery, non-effectives, and camp-followers, which have to be dragged after a cantonment suddenly broken up, and these advanced guards must also be the chief instruments in turning and cutting off the enemy.
(7.) Finally, the retreat in case of ill-success must be thought of, and a rallying point be fixed upon beforehand.
CHAPTER XX.
Diversion
According to the ordinary use of language, under the term diversion is understood such an incursion into the enemy’s country as draws off a portion of his force from the principal point. It is only when this is the chief end in view, and not the gain of the object which is selected as the point of attack, that it is an enterprise of a special character, otherwise it is only an ordinary attack.