a guerrilla zone
6.In a guerrilla zone or guerrilla base area with many guerrilla units, there are usually one or more guerrilla formations (sometimes together with regular formations) which constitute the main force, a number of other guerrilla units, big and small, which represent the supplementary force, and many armed units composed of people not withdrawn from production; the enemy forces there usually form a unified complex to concert their operations against the guerrillas.

