Page:On Guerrilla Warfare (United States Marine Corps translation).djvu/108

Yu Chi Chan (Guerrilla Warfare) proceed, the time of proceeding, and the place, time, and method of assembly.

Guerrillas concentrate when the enemy is advancing upon them, and there is opportunity,to fall upon him and destroy him. Concentration may be desirable when the enemy is on the defensive and guerrillas wish to destroy isolated detachments in particular localities. By the term "concentrate," we do not mean the assembly of all manpower but rather of only that necessary for the task. The remaining guerrillas are assigned missions of hindering and delaying the enemy, of destroying isolated groups, or of conducting mass propaganda.

In addition to the dispersion and concentration of forces, the leader must understand what is termed "alert shifting." When the enemy feels the danger of guerrillas, he will generally send troops out to attack them. The guerrillas must consider the situation and decide at what time and at what place they wish to fight. If they find that they cannot fight, they must immediately shift. Then the enemy may be destroyed piecemeal. For example, after a guerrilla group has destroyed an enemy detachment at one place, it may be shifted to another area to attack and destroy a second detachment. Sometimes, it will not be profitable for a unit to become engaged in a certain area, and in that case, it must move immediately.

When the situation is serious, the guerrillas must move with the fluidity of water and the ease of the blowing wind. Their tactics must deceive, tempt, and confuse the enemy. They must lead the enemy to believe that they will attack