FIRE DIRECTION.

662. When the troop is large enough to be divided into platoons, it is impracticable for the captain to command it in combat. His efficiency in managing the firing line is measured by his ability to enforce his will through the platoon leaders. Having indicated clearly what he desires them to do, he avoids interfering except to correct serious errors or omissions.

The captain directs the fire of his troop or of designated platoons. He designates the target and, when practicable, allots a part of the target to each platoon. Before beginning the fire action he determines the range, announces the sight setting, and indicates the class of fire to be employed and the time to open fire. Thereafter he observes the fire effect, corrects material errors in sight setting, prevents exhaustion of the ammunition supply, and causes the distribution of such extra ammunition as may be received.

FIRE CONTROL.

663. In combat the platoon is the fire unit. From 20 to 35 rifles are as many as one leader can control effectively.

Each platoon leader puts into execution the commands or directions of the captain, having first taken such precautions to insure correct sight setting and clear description of the target or aiming point as the situation permits or requires (par. 141); thereafter he gives such additional commands or directions as are necessary to exact compliance with the captain's will. He corrects the sight setting when necessary. When the target can not be seen with the naked eye, he designates an aiming point (by one of the methods described in par. 141 if necessary) and orders fire upon it, first announcing the proper sight setting to correct the error of aim.

In general, platoon leaders observe the target and the effect of the fire and are on the alert for the captain's commands; they observe and regulate the rate of fire. The file closers watch the firing line and check every breach of fire discipline. Chiefs of section transmit commands when necessary, observe the conduct of their sections and abate excitement, assist in enforcing fire discipline, and participate in the firing unless otherwise directed by the platoon commanders.

The best troops are those that submit longest to fire control. To avoid or delay such loss of control should be the constant aim of all.

Fire control implies the ability of the commander to stop the firing, change the sight setting and target, and resume a well-directed fire.

FIRE DISCIPLINE.