(c) FIRE DIRECTION is the function of the company commander. He gives each platoon its sector or objective, determines the range, target, indicates the class of fire, and the time to open fire. Fire control is given to platoon commanders. The platoon is the fire unit. "Fire control implies the ability to stop firing, change the sight setting and target, and resume a well directed fire. The best troops are those that submit longest to fire control." Fire discipline is the function of the individual soldier. "It implies that in a firing line without leaders, each man retains his presence of mind and directs effective fire upon the target." (d) THE TROOPS march in column of squads until under the observation of the enemy. Platoon columns are used in crossing ground where there is cover. Squad columns are used across the artillery zone. At approximately 800 yards a skirmish line is formed. Thin lines may then be used to advance to the attack. Remember the Major has assigned each company in the firing line an objective. Be sure to watch out for flank protection. If the Major has forgotten to have combat patrols on the exposed flank or flanks, it is up to the flank company to send out a combat patrol. This patrol should be slightly in advance of the front line, and off to the right or left. The advance is made by a fraction rushing forward. These rushes are from 20 to 80 yards. When a rush is made the remaining troops fire faster. The firing line should not be reinforced by less than a platoon. The Major determines when to fix bayonets. The front rank men fix bayonets first, the rear rank men fire faster, then the rear rank men fix bayonets while the front rank fire faster. A battalion is the smallest unit in the firing line to inaugurate a charge. Remember the battalion is the attack unit. In changing sight setting follow same plan as fixing bayonet, _i.e._, each front rank first, the rear rank man firing faster, etc. (e) DEFENSE.--In defense the line is usually stronger and the support weaker than in the attack. Do not give up your ground unless you have written orders from the High Command. Watch out for flank protection by combat patrols.