This field manual establishes doctrine for military operations in a counterinsurgency (COIN) environment. It is based on lessons learned from previous counterinsurgencies and contemporary operations. It is also based on existing interim doctrine and doctrine recently developed. Counterinsurgency operations generally have been neglected in broader American military doctrine and national security policies since the end of the Vietnam War over 40 years ago. This manual is designed to reverse that trend. It is also designed to merge traditional approaches to COIN with the realities of a new international arena shaped by technological advances, globalization, and the spread of extremist ideologies--some of them claiming the authority of a religious faith. This is a comprehensive manual that details every aspect of a successful COIN operation from intelligence to leadership to diplomacy. It also includes several useful appendices that provide important supplementary material.

Original 2006 Publication. This field manual/Marine Corps warfighting publication establishes doctrine (fundamental principles) for mili- tary operations in a counterinsurgency (COIN) environment. It is based on lessons learned from previous coun- terinsurgencies and contemporary operations. It is also based on existing interim doctrine and doctrine recently developed. Counterinsurgency operations generally have been neglected in broader American military doctrine and na- tional security policies since the end of the Vietnam War over 30 years ago. This manual is designed to reverse that trend. It is also designed to merge traditional approaches to COIN with the realities of a new international arena shaped by technological advances, globalization, and the spread of extremist ideologies-some of them claiming the authority of a religious faith. The manual begins with a description of insurgencies and counterinsurgencies. The first chapter includes a set of principles and imperatives necessary for successful COIN operations. Chapter 2 discusses nonmilitary or- ganizations commonly involved in COIN operations and principles for integrating military and civilian activi- ties. Chapter 3 addresses aspects of intelligence specific to COIN operations. The next two chapters discuss the design and execution of those operations. Developing host-nation security forces, an essential aspect of suc- cessful COIN operations, is the subject of chapter 6. Leadership and ethical concerns are addressed in chapter 7. Chapter 8, which concerns sustainment of COIN operations, concludes the basic manual. The appendixes contain useful supplemental information. Appendix A discusses factors to consider during the planning, prepa- ration, execution, and assessment of a COIN operation. Appendixes B and C contain supplemental intelligence information. Appendix D addresses legal concerns. Appendix E describes the role of airpower. Doctrine by definition is broad in scope and involves principles, tactics, techniques, and procedures applicable worldwide. Thus, this publication is not focused on any region or country and is not intended to be a stand- alone reference. Users should assess information from other sources to help them decide how to apply the doc- trine in this publication to the specific circumstances facing them. The primary audience for this manual is leaders and planners at the battalion level and above. This manual ap- plies to the United States Marine Corps, the Active Army, the Army National Guard/Army National Guard of the United States, and the United States Army Reserve unless otherwise stated.

A counterinsurgency (CI) campaign is a mix of offensive, defensive, & stability operations conducted along multiple lines of operations. It requires Soldiers & Marines to employ a mix of familiar combat tasks & skills more often associated with nonmilitary agencies. Achieving the balance between them is not easy & depends on the local situation. Contents: Insurgency & CI; Integrating Civilian & Military Activities; Intelligence in CI; Designing CI Campaigns & Operations; Executing CI Operations; Developing Host-Nation Security Forces: Leadership & Ethics for CI; Sustainment; A Guide for Action; Social Network Analysis & Other Analytical Tools; Linguist Support; Legal Considerations; & Airpower in CI. Glossary. Charts & tables.

This field manual/Marine Corps warfighting publication establishes doctrine (fundamental principles) for military operations in a counterinsurgency (COIN) environment. It is based on lessons learned from previous counterinsurgencies and contemporary operations. It is also based on existing interim doctrine and doctrine recently developed. Counterinsurgency operations generally have been neglected in broader American military doctrine and national security policies since the end of the Vietnam War over 30 years ago. This manual is designed to reverse that trend. It is also designed to merge traditional approaches to COIN with the realities of a new international arena shaped by technological advances, globalization, and the spread of extremist ideologies-some of them claiming the authority of a religious faith. The manual begins with a description of insurgencies and counterinsurgencies. The first chapter includes a set of principles and imperatives necessary for successful COIN operations. Chapter 2 discusses nonmilitary organizations commonly involved in COIN operations and principles for integrating military and civilian activities. Chapter 3 addresses aspects of intelligence specific to COIN operations. The next two chapters discuss the design and execution of those operations. Developing host-nation security forces, an essential aspect of successful COIN operations, is the subject of chapter 6. Leadership and ethical concerns are addressed in chapter 7. Chapter 8, which concerns sustainment of COIN operations, concludes the basic manual. The appendixes contain useful supplemental information. Appendix A discusses factors to consider during the planning, preparation, execution, and assessment of a COIN operation. Appendixes B and C contain supplemental intelligence information. Appendix D addresses legal concerns. Appendix E describes the role of airpower.

"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."--

This field manual establishes doctrine (fundamental principles) for tactical counterinsurgency (COIN) operations at the company, battalion, and brigade level. It is based on lessons learned from historic counterinsurgencies and current operations. This manual continues the efforts of FM 3-24, Counterinsurgency, in combining the historic approaches to COIN with the realities of today's operational environment (OE)-an environment modified by a population explosion, urbanization, globalization, technology, the spread of religious fundamentalism, resource demand, climate change and natural disasters, and proliferation of weapons of mass destruction. This manual is generic in its geographic focus and should be used with other doctrinal sources.

This field manual/Marine Corps warfighting publication establishes doctrine (fundamental principles) for military operations in a counterinsurgency (COIN) environment. It is based on lessons learned from previous counterinsurgencies and contemporary operations. It is also based on existing interim doctrine and doctrine recently developed. Counterinsurgency operations generally have been neglected in broader American military doctrine and national security policies since the end of the Vietnam War over 30 years ago. This manual is designed to reverse that trend. It is also designed to merge traditional approaches to COIN with the realities of a new international arena shaped by technological advances, globalization, and the spread of extremist ideologies-some of them claiming the authority of a religious faith. The manual begins with a description of insurgencies and counterinsurgencies. The first chapter includes a set of principles and imperatives necessary for successful COIN operations. Chapter 2 discusses nonmilitary organizations commonly involved in COIN operations and principles for integrating military and civilian activities. Chapter 3 addresses aspects of intelligence specific to COIN operations. The next two chapters discuss the design and execution of those operations. Developing host-nation security forces, an essential aspect of successful COIN operations, is the subject of chapter 6. Leadership and ethical concerns are addressed in chapter 7. Chapter 8, which concerns sustainment of COIN operations, concludes the basic manual. The appendixes contain useful supplemental information. Appendix A discusses factors to consider during the planning, preparation, execution, and assessment of a COIN operation. Appendixes B and C contain supplemental intelligence information. Appendix D addresses legal concerns. Appendix E describes the role of airpower. Doctrine by definition is broad in scope and involves principles, tactics, techniques, and procedures applicable worldwide. Thus, this publication is not focused on any region or country and is not intended to be a standalone reference. Users should assess information from other sources to help them decide how to apply the doctrine in this publication to the specific circumstances facing them. The primary audience for this manual is leaders and planners at the battalion level and above. This manual applies to the United States Marine Corps, the Active Army, the Army National Guard/Army National Guard of the United States, and the United States Army Reserve unless otherwise stated.