In the cases where the infantry of the advanced guard forms the main guard, the battery of machine guns should march with the foremost body of troops and should never march in rear, where they are useless, and where, if on a road, they can only be moved up with difficulty. The battery commander should remain with the O.C. advanced guard until he is fully acquainted with the situation and his intentions. Should the situation be such as to enable the advanced guard to brush aside the opposition, the machine guns must be used vigorously to support the infantry attack, and should be pushed forward to seize positions before the infantry deploy, and cover their deployment by fire. In the preliminary stages these positions will probably be on the immediate front, and the four guns should be able to occupy a front roughly coinciding with the first deployment of the infantry. As soon as the infantry come into action the machine guns may be withdrawn and used on the flanks to bring a cross fire to bear, and to fire on any closed bodies, led horses, etc., that may offer a target. At this stage the guns should work in pairs in mutual support, and may be used on one or both flanks as the situation requires. Machine guns should rarely be used in the firing line after the infantry deploy, as they offer a rather marked target and can be far more profitably employed in pressing the attack on the flanks. There are several instances of the successful use of machine guns with the advanced guard in South Africa in 1900 to support the mounted vanguard, and on many occasions they were able to brush the enemy aside without deploying the main guard or delaying the march of the column. THE ATTACK Under cover of the advanced-guard action and the subsequent artillery duel the infantry will deploy for the attack. The first advance of the infantry will probably be covered and supported by the artillery, and they will generally be able to push forward to within long range of the enemy’s infantry, without the necessity of covering their advance by rifle fire. From here, however, the firing line will begin to suffer from rifle fire, and it will be necessary to reply to this fire in order to cover the further advance.