In the first case the squadron with scouts in front will move in column of troops ready to wheel into line for the attack. The machine guns should move in line immediately in rear of the rear troop and as close as possible, so as not to be seen from the front. The subsequent action of the machine guns must of course depend on the method of attack of the squadron and the nature of the country; but the objects in view will be (1) to support the attack by fire up to the moment of the collision, and then to bring fire to bear upon the retreating enemy and prevent their rallying; (2) to take up a position to cover the retirement of the squadron and enable it to re-form if worsted in the encounter. It is likely that if the first object is successfully attained and the fire of the section brought to bear on the enemy’s squadron, from any range under 800 yards, for only 30 seconds, the effect on the closed body of horsemen, whether in column or line, would be such as to throw them into considerable confusion at the moment of the charge, while any attempt to charge the guns, even by a second squadron, must be abortive and result in disaster. The squadron leader should have arranged beforehand with his machine-gun commander to manœuvre with a view to this co-operation, and will give the signal a few moments before wheeling into line to attack, when the machine guns will gallop out to the most suitable flank, and come into action as rapidly as possible so as to enfilade the enemy’s advance. The moment the charging squadrons mask the fire of the guns, they must remount and gallop to a fresh position in anticipation of the pursuit, in order to bring fire to bear on the retreating enemy and prevent a rally; or to cover the retirement of the squadron and enable it to rally and reform. The effect of his fire and the success or otherwise of the first collision will enable the section commander to decide instantly which of these two actions will be necessary. It will be seldom that the country is so flat that some feature cannot be found giving a good field of fire or commanding a road, or bridge, or other defile by which the enemy must retreat, or which they must pass in pursuit, and the use of such features will greatly assist the action of machine guns. Although both guns will fire together before the collision, their subsequent action must be made in mutual support, one gun firing while the other races to a new position from which it can overtake and flank the retiring enemy, so that, if possible, one gun is always firing at effective range while the other is moving. In the same way, if covering the retreat of their own squadron, one gun will fire while the other retires to a second position and in turn covers the retirement of the first. The guns must not hesitate to separate widely in order to obtain unseen the best possible positions from which to fire, but must always be able to support each other. If the country is much broken, opportunities will be