When this condition is reached, the guerrilla, having taken up inaccessible positions out of reach of the enemy, or having assembled forces that deter the enemy from attacking, ought to proceed to the gradual weakening of the enemy. This will be carried out at first at those points nearest to the points of active warfare against the guerrilla band and later will be taken deeper into enemy territory, attacking his communications, later attacking or harassing his bases of operations and his central bases, tormenting him on all sides to the full extent of the capabilities of the guerrilla forces.
The blows should be continuous. The enemy soldier in a zone of operations ought not to be allowed to sleep; his outposts ought to be attacked and liquidated systematically. At every moment the impression ought to be created that he is surrounded by a complete circle. In wooded and broken areas this effort should be maintained both day and night; in open zones that are easily penetrated by enemy patrols, at night only. In order to do all this the absolute cooperation of the people and a perfect knowledge of the ground are necessary. These two necessities affect every minute of the life of the guerrilla fighter. Therefore, along with centers for study of present and future zones of operations, intensive popular work must be undertaken to explain the motives of the revolution, its ends, and to spread the incontrovertible truth that victory of the enemy against the people is finally impossible. Whoever does not feel this undoubted truth cannot be a guerrilla fighter.
This popular work should at first be aimed at securing secrecy; that is, each peasant, each member of the society in which action is taking place, will be asked not to mention what he sees and hears; later, help will be sought from inhabitants whose loyalty to the revolution offers greater guarantees; still later, use will be made of these persons in missions of contact, for transporting goods or arms, as guides in the zones familiar to them; still later, it is possible to arrive at organized mass action in the centers of work, of which the final result will be the general strike.
The strike is a most important factor in civil war, but in order to reach it a series of complementary conditions are necessary which do not always exist and which very rarely come to exist spontaneously.