3. The orders issued by the brigadier will be in the same form as those issued by the officer commanding a larger force, S. 131. 4. The brigadier will be accompanied by signallers, who will maintain communication with all the battalions of the brigade during the attack. THE DIVISION IN ATTACK. =159.= GENERAL RULES. 1. The best battle-formation for the infantry of a division engaged in a decisive attack, and, generally speaking, in all attacks, is the two brigades placed alongside each other, dividing the front, and regulating their own reserves. If the division is acting alone, it is important that, as a general rule, the divisional commander should retain two complete battalions as general reserve. During the action the divisional commander should be accompanied by a party of mounted signallers. 2. The divisional commander assigns to the brigadiers their respective tasks, leaving them perfect freedom as to the manner of execution. 3. The orders issued by the divisional commander will be drawn up and issued as directed in S. =131=, and “Combined Training,” S. =115=. 4. If the divisional commander finds it necessary to detach a battalion, or in an unforeseen contingency to give an individual battalion direct orders for the execution of some movement, he should at once inform the brigadier to whom the battalion belongs. 5. In the instruction of the brigade or division a most useful exercise is to practice deployments for attack under different suppositions, such as an enemy occupying different extents of front, an enemy suddenly discovered in position half-right, half-left, or flanking the line of march. THE DEFENCE. =160.= _Distribution of Infantry for defence._ 1. Infantry detailed for the defence of the entrenchments will generally be distributed in two bodies, viz., (i) _Firing Line_ and _Supports_. (ii) _Local Reserves._ For the decisive counter-attack, a separate body, _The General Reserve_, which has nothing to do with the immediate defence of the entrenchments, will be retained in the hands of the officer commanding. 2. The strength of the firing line will depend entirely on the extent of the field of fire and the character of the cover. If the conditions are favourable to the defence a few men can easily protect a wide front. If there is any chance of a surprise, or of the position being attacked by a sudden rush, the firing line should be as dense as is compatible with the free use of the rifle by every man engaged. 3. The duty of the supports is to replace casualties in the firing line, and they should therefore be posted near at hand and under cover. In strong positions very small supports will be quite sufficient, or they may even be dispensed with altogether.