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 Machine guns will be able to bring all their powers into play to the best advantage at the beginning of a rencontre, when, from their position as far forward as possible in the column, they are pushed to the front to occupy important points and to compel the enemy to deploy his infantry. The commander should, however, endeavor to withdraw the machine guns from the fight as soon as his own infantry has deployed, in order to avoid involving the guns in a protracted fire fight necessitating an expenditure of a great amount of ammunition and in which the accuracy of their fire would gradually suffer. The proper sphere of machine guns lies in their employment as a separate arm, whether they are posted so as to flank an enemy, or are kept at the disposal of the commander as an ever ready reserve, which is pushed forward to keep the point to be attacked under fire, to meet a counter-attack, or—and to this use they are best adapted—to participate in the pursuit. Their employment is also proper in rear guard actions, since they are able to remain in position longer, for example, than rear guard infantry, whose energies are paralyzed by the thought of getting away from the enemy in time. Machine guns are much more independent than infantry on account of their ability to withdraw at an increased gait. On account of their greater staying power and the greater intensity of their fire, they increase the delay which the enemy suffers, as well as the start gained by their own force; they moreover enable their own force to get away from the enemy and to escape pursuit.

In employing machine guns in defense, it must be borne in mind that the guns are not adapted to carry on protracted fire actions; and that the advantage of the mobility of machine gun batteries cannot be properly utilized if they have been assigned, from the outset, a definite section to defend. As a rule, it will be advisable, in defense, to keep the machine guns