THE FIRE ATTACK
(See [pars. 414]–438.)
[472]. Fire superiority sought at first firing position, and to be maintained until charging point is reached; size of rushing units. At the first firing position the attack seeks to gain fire superiority. This may necessitate a steady, accurate fire a long time. The object is to subdue the enemy's fire and keep it subdued so that the attacking troops may advance from this point to a favorable place near the enemy from which the charge may be made. Hence, in the advance by rushes, sufficient rifles must be kept constantly in action to keep down the enemy's fire; this determines the size of the fraction rushing. (458)
[473]. Futility of advancing without fire superiority. To advance without fire superiority against a determined defense would result in such losses as to bring the attack to a standstill or to make the apparent success barren of results. (459)
[474]. Signs that fire superiority has been gained. Diminution of the enemy's fire and a pronounced loss in effectiveness are the surest signs that fire superiority has been gained and that a part of the firing line can advance. (460)
[475]. Retiring under fire in daylight suicidal; intrenching. The men must be impressed with the fact that, having made a considerable advance under fire and having been checked, it is suicidal to turn back in daylight.
If they can advance no farther, they must intrench and hold on until the fall of darkness or a favorable turn in the situation develops.
Intrenching is resorted to only when necessary. Troops who have intrenched themselves under fire are moved forward again with difficulty. (461)
[476]. Supports and reserves occupying trenches vacated by firing line, to improve same. Supports and reserves occupying intrenchments vacated by the firing line should improve them, but they must not be held back or diverted from their true missions on this account. (462)
[477]. Greater detail of conduct of fire attack. [Paragraphs 346] to 354, inclusive, deal more in detail with the conduct of the fire attack. (463)