The 1986 Printing. The aims, objectives, and methods of guerrilla warfare differ greatly from those of conventional warfare. To be successful in countering this type of war, the planners of counterguerrilla operations must understand the enemy and the unique environment in which he operates. This manual provides commanders and staffs of brigade elements and below with concepts and doctrine concerning the conduct of counter- guerrilla operations by US forces in insurgency and conventional conflict environments. It provides a general overview of US counterin- surgency strategy and the impact that strategy has on counterguerrilla operations. It provides planning, training, and operational guidance for commanders and staffs conducting counterguerrilla operations. The doctrine provides principles to guide the actions of US forces conducting counterguerrilla operations. In applying these principles, the commander must be aware that the situation in each counterguerrilla operation is unique. Techniques and tactics applied successfully in one situation may not be suitable if applied in the same manner in another situation. The principles in this manual are guides to be adapted to each counterguerrilla situation.