This field manual establishes doctrine (fundamental principles) fortactical counterinsurgency (COIN) operations at the company, battalion, andbrigade level. It isbased 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. - Chapter 1, Operational Environment of Counterinsurgency, defines insurgent and counterinsurgent while using the operational variables and mission variables to describe the OE. Finally, it stresses developing a culture capability for Soldiers and leaders. - Chapter 2, Foundations of Insurgency, categorizes insurgent groups by their components- elements, dynamics, and strategies and their manifestations-tactics, strengths, and vulnerabilities. - Chapter 3, Foundations of Counterinsurgency, covers the seven lines ofeffort, tactical considerations, clear-hold-build operations, and counterinsurgency phases. - Chapter 4, Planning in Counterinsurgency, arguably the most important chapter, covers planning fortactical units during counterinsurgency operations. It also covers planning horizons and targeting. - Chapter 5, Offensive Operations in Counterinsurgency, addresses offensive techniques used by tactical units during counterinsurgency operations. - Chapter 6, Defensive Operations in Counterinsurgency, addresses defensive techniques used by tactical units during counterinsurgency operations. - Chapter 7, Stability Operations in Counterinsurgency, addresses stability techniques used by tactical units during counterinsurgency operations. - Chapter 8, Working with Host Nation Security Forces, covers the seven steps (MORTEAM) units use to train, advise, and partner with Host Nation security forces.

The American way of war includes mass, power, and the use of sophisticated smart weapons.However, large main force engagements that characterized conflict in World War II, Korea, andOperations Desert Storm and Iraqi Freedom in the Middle East have become the exceptions inAmerican warfare. Since the American Revolution, the Army has conducted stability operations, which have included counterinsurgency operations. Over the past half-century alone, the Armygained considerable experience in fighting insurgents in Southeast Asia (Vietnam, Laos, Philippines), Latin America (Colombia, Peru, El Salvador, Guatemala, Nicaragua), Africa (Somalia), Southwest Asia (Afghanistan), and now the Middle East (Iraq). Dealing with counterinsurgencysince the Vietnam War has fallen largely on SOF; however, conventional forces have frequentlycome into contact with insurgent forces that seek to neutralize the inherent advantages of size, weaponry, and conventional force TTP. Insurgents use a combination of actions that include terror, assassination, kidnapping, murder, guerrilla tactics such as ambushes, booby traps, and improvised explosive devices aimed at US and multinational forces, the host country's leaders, andordinary citizens. Counterinsurgency is those military, paramilitary, political, economic, psychological, and civicactions taken by a government to defeat insurgency (JP 1-02). It is an offensive approach involving all elements of national power; it can take place across the range of operations and spectrumof conflict. It supports and influences an HN's IDAD program. It includes strategic and operational planning; intelligence development and analysis; training; materiel, technical, and organizational assistance; advice; infrastructure development; tactical-level operations; and many elements of PSYOP. Generally, the preferred methods of support are through assistance and development programs. Leaders must consider the roles of military, intelligence, diplomatic, lawenforcement, information, finance, and economic elements (MIDLIFE) in counterinsurgency.

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 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, "Tactics in Counterinsurgency" (FM 3-24.2), 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.

Counterinsurgency is those military, paramilitary, political, economic, psychological, and civic actions taken by a government to defeat insurgency (JP 1-02). It is an offensive approach involving all elements of national power; it can take place across the range of operations and spectrum of conflict. It supports and influences an HN’s IDAD program. It includes strategic and operational planning; intelligence development and analysis; training; materiel, technical, and organizational assistance; advice; infrastructure development; tactical-level operations; and many elements of PSYOP. Generally, the preferred methods of support are through assistance and development programs. Leaders must consider the roles of military, intelligence, diplomatic, law enforcement, information, finance, and economic elements (MIDLIFE) in counterinsurgency.