It is necessary to maintain stable lines of communication in order to be able always to count on a minimum of food, stockpiled, in the event of any disagreeable development.
In this kind of zone of operations the possibilities of sabotage on a large scale are generally not present; with the inaccessibility goes a lack of constructions, telephone lines, aqueducts, etc., that could be damaged by direct action.
For supply purposes it is important to have animals, among which the mule is the best in rough country. Adequate pasturage permitting good nutrition is essential. The mule can pass through extremely hilly country impossible for other animals. In the most difficult situations it is necessary to resort to transport by men. Each individual can carry twenty-five kilograms for many hours daily and for many days.
The lines of communication with the exterior should include a series of intermediate points manned by people of complete reliability, where products can be stored and where contacts can go to hide themselves at critical times. Internal lines of communication can also be created. Their extension will be determined by the stage of development reached by the guerrilla band. In some zones of operations in the recent Cuban war, telephone lines of many kilometers of length were established, roads were built, and a messenger service maintained sufficient to cover all zones in a minimum of time.
There are also other possible means of communication, not used in the Cuban war but perfectly applicable, such as smoke signals, signals with sunshine reflected by mirrors, and carrier pigeons.
The vital necessities of the guerrillas are to maintain their arms in good condition, to capture ammunition, and, above everything else, to have adequate shoes. The first manufacturing efforts should therefore be directed toward these objectives. Shoe factories can initially be cobbler installations that replace half soles on old shoes, expanding afterwards into a series of organized factories with a good average daily production of shoes. The manufacture of powder is fairly simple; and much can be accomplished by having a small laboratory and bringing in the necessary materials from outside. Mined areas constitute a grave danger for the enemy; large areas can be mined for simultaneous explosion, destroying up to hundreds of men. 5. Warfare on Unfavorable Ground
In order to carry on warfare in country that is not very hilly, lacks forests, and has many roads, all the fundamental requisites of guerrilla warfare must be observed; only the forms will be altered. The quantity, not the quality, of guerrilla warfare will change.