Bombing squads (1 non-commissioned officer and 8 men) are on the flank of each attacking wave. Battalion bombers are assigned a special task.
All movements must be over the top of the ground. The pace throughout should be a steady walk, except for the last 30 or 40 yards, when the line should break into a steady double time, finishing up the last 10 yards with a rush.
Barrage is continued 20 or 30 minutes after the objective has been reached.
Mopping parties must be trained with great care under selected officers. They should always wear a distinguishing mark. They must at once dispose of any occupants who may have emerged from their dugouts, and picket the dugout entrances.
The ultimate unit in the assault is the platoon. It must be organized and trained as a self-contained unit, capable of producing the required proportion of riflemen, bombers, rifle bombers, Lewis gunners, and carriers, all trained to work in combination.
Assaulting troops should have twelve hours of daylight in the trenches before the assault begins, to enable them to get acquainted with the ground and get some rest. All ranks must be given a hot meal, including hot tea or coffee, before the assault.
Take every precaution to prevent the enemy from realizing that the assault is about to take place. Bayonets must not be allowed to show. No increase in rate of artillery fire. No unusual movements must be made in the trenches, and there must be no indication of the impending assault until the barrage is dropped.
When the trench has been taken, it should be consolidated at once to prevent counterattack. To protect this consolidation, throw out an outpost line, the posts consisting of one non-commissioned officer and 6 riflemen with a Lewis gun, about 150 to 200 yards apart and 100 to 300 yards beyond the line. These posts should be established in shellholes, which are to be converted into fire trenches, protected by wire entanglements, as soon as possible.
Approach trenches toward the enemy should be blockaded and hand and rifle grenadiers posted to guard them. The main captured trench should be converted at once into a fire trench facing the enemy. If it is badly knocked to pieces, a new trench may be constructed 40 or 50 yards in front of the captured line. The commander must reorganize in depth to provide supports and reserves for counterattacks. Situation reports should be sent back frequently. Rough sketches are better than messages.
Tanks follow infantry as closely as possible to deal with strong points. They are employed in sections of four.
Machine guns may be used to provide covering fire for attacking infantry, cover its withdrawal if the attack fails, fill gaps in the assaulting lines, assist in the consolidation of positions and repel counterattacks.
Lewis guns are of great value in knocking out hostile machine guns. They usually move on the flanks of the second wave of assault. Later they are used to back up patrols and to hold the outpost line while the garrison line is being consolidated.


