"Field Manual (FM) 3-24/ Marine Corps Warfighting Publication (MCWP) 3-33.5 provides doctrine for Army and Marine units that are countering an insurgency. It provides a doctrinal foundation for counterinsurgency. FM 3-24/MCWP 3-33.5 is a guide for units fighting or training for counterinsurgency operations. The principal audience for FM 3-24/MCWP 3-33.5 is battalion, brigade, and regimental commanders and their staffs. Commanders and staffs of Army and Marine Corps headquarters serving as joint task force or multinational headquarters should also refer to applicable joint or multinational doctrine concerning the range of military operations and joint or multinational forces. Trainers and educators throughout the Army and Marine Corps will also use this publication. Commanders, staffs, and subordinates ensure their decisions and actions comply with applicable United States (U.S.), international, and, in some cases, host-nation laws and regulations. Commanders at all levels ensure their Soldiers operate in accordance with the law of war and the rules of engagement."
FM 3-24, MCWP 3-33.5
Department of the Army: http://armypubs.army.mil/