nd
infantry trenches.
(2) To produce curtains of fire and prevent bringing up
reenforcements.

_Light guns are assigned to_ EACH BATTALION OF INFANTRY, subject only
to orders of regimental and battalion commanders concerned.

Save under exceptional circumstances the light gun is always attached
to the Machine Gun Company for the attack.

The essential role of the light gun is to destroy with direct fire the
visible machine guns; they are employed separately and not grouped.

The infantry is divided into two classes: Holding troops--and
attacking or shock troops. Holding troops are those doing routine or
trench duty; shock troops are picked organizations of young and
vigorous men and are kept in camps well behind the battle front.
Holding troops are two weeks in and two weeks out of the trenches.

All specialist groups, _i.e._, Machine Gun Companies, etc., are
officered, allowing company and battalion commanders to concentrate
them, if the situation requires.

_They play the normal part in combat if they do not receive special
instructions._

Attack of a Defensive Position.

Unity of command in depth must be preserved everywhere, unless there
is an imperative reason for doing otherwise.

The front of each regiment should be divided between two or three
battalions.

_Each battalion commander having to look after a front of from 500 to
600 yards, can exercise efficient control of his command._

In preparing for an assault, seniors must take steps to organize it
and make all necessary preparations themselves, and not leave all the
responsibility with the juniors.

In the assault each unit must know its special task beforehand, and it
should be rehearsed in rear of the line of trenches. Each commander
must know the exact time he is to start and must start on time.

The first waves of men are placed at 4 or 5 pace interval. Chief of
section can command only a front of 80 to 100 paces and it is
necessary to form the section in two (2) waves. The first containing
the grenadiers and automatic riflemen, the latter in the center. The
second wave contains the riflemen and rifle grenadiers, the latter in
the center.

If the terrain is cut up by woods, villages, etc., the proportion of
grenadiers may be increased by taking them from the sections in
support and the automatic riflemen sent back to the second wave.

If the distance to cross exceeds 300 or 400 yards, the number of
automatic rifleme