Mao Tse-tung on Guerrilla Warfare
Because guerrilla formations act independently and because they are the most elementary of armed formations, command cannot be too highly centralized. If it were, guerrilla action would be too limited in scope. At the same time, guerrilla activities, to be most effective, must be coordinated, not only insofar as they themselves are concerned, but additionally with regular troops operating in the same areas. This coordination is a function of the warzone commander and his staff.
In guerrilla base areas, the command must be centralized for strategical purposes and decentralized for tactical purposes. Centralized strategical command takes care of the general management of all guerrilla units, their coordination within war zones, and the general policy regarding guerrilla base areas. Beyond this, centralization of command will result in interference with subordinate units, as, naturally, the tactics to apply to concrete situations can be determined only as these various situations arise. This is true in orthodox warfare when communications between lower and higher echelons break down. In a word, proper guerrilla policy will provide for unified strategy and independent activity.
Each guerrilla area is divided into districts and these in turn are divided into subdistricts. Each subdivision has its appointed commander, and while general plans are made by higher commanders, the nature of actions is determined by inferior commanders. The former may suggest the nature of the action to be taken but cannot define it. Thus inferior groups have more or less complete local control.