1. At a walk, by long rushes made by strong units (by platoons at least), supported by powerful artillery fire or by the fire of a machine gun battery or a detachment of skirmishers posted in a favorable position;
2. By shorter rushes made by smaller units ("proper only when conditions demand it");
3. By crawling, or, in exceptional cases (for example in passing through fields of standing grain), by employing
4. Fire while in motion.
The fire fight at long ranges and near the extreme limit of mid ranges is only a means for the purpose of reaching the decisive battle ranges, and of interfering with the undisturbed delivery of the enemy's fire. Fire must be opened at as late a moment as possible. Our firing line should in any case be strong enough, upon entering the zone of mid ranges, to reply effectively to the enemy's fire. Experience has shown that an assailant who opens fire at "long" ranges rarely reaches short ranges. (See p. 149 supra).
The distances at which the echelons in rear follow the firing line should be less (as laid down in the Italian and Russian regulations) than the distance which separates the firing line of the attacker from that of the defender. The distances may be increased without danger at this stage of the combat, as the decision is not imminent, but on the flanks the supports will have to be brought up closer in order that an unexpected flank attack may be effectively opposed. All parts of the attacking force move—as long as possible at a walk—straight to the front. Subordinate leaders, taking advantage of all available cover, should endeavor to lead the supports skillfully after the firing line. This requires that the ground to be crossed be reconnoitered. As a rule, a movement by the flank upon leaving cover is costlier than an advance by squads or sections over open ground. Long lines make it easier for the hostile artillery to adjust and observe its fire, while, when a greater number of targets of smaller frontage is exposed, this is made more difficult. For this reason, supports are not led forward
