Irregular warfare (IW) is defined in

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

joint doctrine as "a violent struggle among state and non-state actors for legitimacy and influence over the relevant populations" and in U.S. law as "Department of Defense activities not involving armed conflict that support predetermined United States policy and military objectives conducted by, with, and through regular forces, irregular forces, groups, and individuals." In practice, control of institutions and infrastructure is also important. Concepts associated with irregular warfare are older than the term itself. Irregular warfare favors indirect warfare and

asymmetric warfare Asymmetric warfare (or asymmetric engagement) is a type of war between belligerents whose relative military power, strategy or tactics differ significantly. This type of warfare often, but not necessarily, involves insurgents, terrorist grou ...

approaches, though it may employ the full range of military and other capabilities in order to erode the adversary's power, influence, and will. It is inherently a protracted struggle that will test the resolve of a

state State most commonly refers to: * State (polity), a centralized political organization that regulates law and society within a territory **Sovereign state, a sovereign polity in international law, commonly referred to as a country **Nation state, a ...

and its strategic partners."Irregular Warfare (IW)", DoD Directive 3000.07,

United States Department of Defense The United States Department of Defense (DoD, USDOD, or DOD) is an United States federal executive departments, executive department of the federal government of the United States, U.S. federal government charged with coordinating and superv ...

, 1 December 200

/ref> The term "irregular warfare" in Joint doctrine was settled upon in distinction from " conventional warfare, traditional warfare" and "

unconventional warfare Unconventional warfare (UW) is broadly defined as "military and quasi-military operations other than conventional warfare" and may use covert forces or actions such as subversion, diversion, sabotage, espionage, biowarfare, sanctions, propaga ...

", and to differentiate it as such; it is unrelated to the distinction between " regular" and "

irregular forces Irregular military is any military component distinct from a country's regular armed forces, representing non-standard militant elements outside of conventional governmental backing. Irregular elements can consist of militias, private armie ...

Terminology

Early usage

One of the earliest known uses of the term ''irregular warfare'' is Charles Edward Callwell's classic 1896 publication for the

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, ''Small Wars: Their Principles and Practices'', where he noted in defining 'small wars': "Small wars include the partisan warfare which usually arises when trained soldiers are employed in the quelling of sedition and of insurrections in civilised countries; they include campaigns of conquest when a Great Power adds the territory of barbarous races to its possessions; and they include punitive expeditions against tribes bordering upon distant colonies....Whenever a regular army finds itself engaged upon hostilities against irregular forces, or forces which in their armament, their organization, and their discipline are palpably inferior to it, the conditions of the campaign become distinct from the conditions of modern regular warfare, and it is with hostilities of this nature that this volume proposes to deal. Upon the organization of armies for irregular warfare valuable information is to be found in many instructive military works, official and non-official." A similar usage appears in the 1986 English edition of "Modern Irregular Warfare in Defense Policy and as a Military Phenomenon" by former

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officer Friedrich August Freiherr von der Heydte. The original 1972 German edition of the book is titled "Der Moderne Kleinkrieg als Wehrpolitisches und Militarisches Phänomen". The German word "Kleinkrieg" is literally translated as "Small War." The word "Irregular," used in the title of the English translation of the book, seems to be a reference to non "regular armed forces" as per the

Third Geneva Convention The Third Geneva Convention, relative to the treatment of prisoners of war, is one of the four treaties of the Geneva Conventions. The Geneva Convention relative to the Treatment of Prisoners of War was first adopted in 1929, but significantl ...

. Another early use of the term is in a 1996

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(CIA) document by Jeffrey B. White. Major

military doctrine Military doctrine is the expression of how military forces contribute to campaigns, major operations, battles, and engagements. A military doctrine outlines what military means should be used, how forces should be structured, where forces shou ...

developments related to IW were done between 2004 and 2007 as a result of the

September 11 attacks The September 11 attacks, also known as 9/11, were four coordinated Islamist terrorist suicide attacks by al-Qaeda against the United States in 2001. Nineteen terrorists hijacked four commercial airliners, crashing the first two into ...

on the

. A key proponent of IW within US Department of Defense (DoD) is Michael G. Vickers, a former paramilitary officer in the CIA. The CIA's

Special Activities Center The Special Activities Center (SAC) is the center of the United States Central Intelligence Agency responsible for covert operations. The unit was named Special Activities Division (SAD) prior to a 2015 reorganization. Within SAC there are at l ...

(SAC) is the premiere American

paramilitary A paramilitary is a military that is not a part of a country's official or legitimate armed forces. The Oxford English Dictionary traces the use of the term "paramilitary" as far back as 1934. Overview Though a paramilitary is, by definiti ...

clandestine unit for creating and for combating irregular warfare units. For example, SAC paramilitary officers created and led successful irregular units from the Hmong tribe during the war in Laos in the 1960s, from the

Northern Alliance The Northern Alliance ( ''Da Šumāl E'tilāf'' or ''Ettehād Šumāl''), officially known as the United National Front for the Salvation of Afghanistan ( ''Jabha-ye Muttahid-e barāye Afğānistān''), was a military alliance of groups that op ...

against the

Taliban , leader1_title = Supreme Leader of Afghanistan, Supreme leaders , leader1_name = {{indented plainlist, * Mullah Omar{{Natural Causes{{nbsp(1994–2013) * Akhtar Mansour{{Assassinated (2015–2016) * Hibatullah Akhundzada (2016–present) ...

during the war in Afghanistan in 2001, and from the

Kurdish Kurdish may refer to: *Kurds or Kurdish people *Kurdish language ** Northern Kurdish (Kurmanji) **Central Kurdish (Sorani) **Southern Kurdish ** Laki Kurdish *Kurdish alphabets *Kurdistan, the land of the Kurdish people which includes: **Southern ...

Peshmerga The Peshmerga () are the internal security forces of Kurdistan Region. According to the Constitution of Iraq, regional governments are responsible for "the establishment and organization of the internal security forces for the region such as p ...

against Ansar al-Islam and the forces of

Saddam Hussein Saddam Hussein (28 April 1937 – 30 December 2006) was an Iraqi politician and revolutionary who served as the fifth president of Iraq from 1979 until Saddam Hussein statue destruction, his overthrow in 2003 during the 2003 invasion of Ira ...

during the war in Iraq in 2003.

Other definitions

* IW is a form of warfare that has as its objective the credibility and/or legitimacy of the relevant political authority with the goal of undermining or supporting that authority. IW favors indirect approaches, though it may employ the full range of military and other capabilities to seek asymmetric approaches in order to erode an adversary's power, influence, and will. * IW is defined as a violent struggle among

and non-state actors for legitimacy and influence over the relevant

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

(s) * IW involves conflicts in which enemy combatants are not regular military forces of nation-states. * IW is "war among the people" as opposed to "industrial war" (i.e., regular war).

Examples

Nearly all modern wars include at least some element of irregular warfare. Since the time of Napoleon, approximately 80% of conflict has been irregular in nature. However, the following conflicts may be considered to have exemplified by irregular warfare: * Afghan Civil War *

Algerian War The Algerian War (also known as the Algerian Revolution or the Algerian War of Independence) ''; '' (and sometimes in Algeria as the ''War of 1 November'') was an armed conflict between France and the Algerian National Liberation Front (Algeri ...

American Indian Wars The American Indian Wars, also known as the American Frontier Wars, and the Indian Wars, was a conflict initially fought by European colonization of the Americas, European colonial empires, the United States, and briefly the Confederate States o ...

American Revolutionary War The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which Am ...

According to the definition of "regular forces," which came much after the

( ARW), the American forces did not meet the following criteria at all times during the ARW: * having a fixed distinctive emblem recognizable at a distance * carrying arms openly * conducting operations in accordance with the laws and customs of war
Notwithstanding, in terms of modern international humanitarian law which was also developed much later than the ARW, the American forces formed part of the armed forces of a party to an armed conflict but not belonging to that party's regular forces (since the

United States of America The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 states and a federal capital district, Washington, D.C. The 48 contiguo ...

did not exist and hence could not have had regular forces; the American forces were an insurgency at least until 1776) and operating in or outside of their own territory even if the territory is under occupation. American forces did become regular forces but cannot be considered regular forces during the entire period of the ARW. For example, the American flag got established (1777) 2 years after the ARW started (1775). Also, there were great disparities between the American and British forces. It was not until France started to assist American forces (1778) that the disparity started to be narrowed. Conflict during the disparity surely counts as

Asymmetric warfare Asymmetric warfare (or asymmetric engagement) is a type of war between belligerents whose relative military power, strategy or tactics differ significantly. This type of warfare often, but not necessarily, involves insurgents, terrorist grou ...

. Also, the

Boston Tea Party The Boston Tea Party was a seminal American protest, political and Mercantilism, mercantile protest on December 16, 1773, during the American Revolution. Initiated by Sons of Liberty activists in Boston in Province of Massachusetts Bay, colo ...

(1773) can be viewed as

guerrilla Guerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, Partisan (military), partisans, paramilitary personnel or armed civilians, which may include Children in the military, recruite ...

tactics. At the very least, a good portion of the ARW should be counted as IW, although the entire ARW being counted as IW is controversial. However, since more than 1/2 of the ARW was fought as ARW then it is thought that it is safe to classify it as IW even though that the American forces acted in all respects as regular forces towards the end of the conflict. *

Arab Revolt The Arab Revolt ( ), also known as the Great Arab Revolt ( ), was an armed uprising by the Hashemite-led Arabs of the Hejaz against the Ottoman Empire amidst the Middle Eastern theatre of World War I. On the basis of the McMahon–Hussein Co ...

Chinese Civil War The Chinese Civil War was fought between the Kuomintang-led Nationalist government, government of the Republic of China (1912–1949), Republic of China and the forces of the Chinese Communist Party (CCP). Armed conflict continued intermitt ...

Cuban Revolution The Cuban Revolution () was the military and political movement that overthrew the dictatorship of Fulgencio Batista, who had ruled Cuba from 1952 to 1959. The revolution began after the 1952 Cuban coup d'état, in which Batista overthrew ...

First Chechen War The First Chechen War, also referred to as the First Russo-Chechen War, was a struggle for independence waged by the Chechen Republic of Ichkeria against the invading Russia, Russian Federation from 1994 to 1996. After a mutually agreed on treaty ...

First Sudanese Civil War The First Sudanese Civil War (also known as the Anyanya Rebellion or Anyanya I, after the name of the rebels, a term in the Madi language which means 'snake venom') was fought from 1955 to 1972 between the northern part of Sudan and the sout ...

Iraq War The Iraq War (), also referred to as the Second Gulf War, was a prolonged conflict in Iraq lasting from 2003 to 2011. It began with 2003 invasion of Iraq, the invasion by a Multi-National Force – Iraq, United States-led coalition, which ...

Kosovo War The Kosovo War (; sr-Cyrl-Latn, Косовски рат, Kosovski rat) was an armed conflict in Kosovo that lasted from 28 February 1998 until 11 June 1999. It ...

Lebanese Civil War The Lebanese Civil War ( ) was a multifaceted armed conflict that took place from 1975 to 1990. It resulted in an estimated 150,000 fatalities and led to the exodus of almost one million people from Lebanon. The religious diversity of the ...

Portuguese Colonial War The Portuguese Colonial War (), also known in Portugal as the Overseas War () or in the Portuguese Empire, former colonies as the War of Liberation (), and also known as the Angolan War of Independence, Angolan, Guinea-Bissau War of Independence ...

* Rwanda Civil War *

Second Boer War The Second Boer War (, , 11 October 189931 May 1902), also known as the Boer War, Transvaal War, Anglo–Boer War, or South African War, was a conflict fought between the British Empire and the two Boer republics (the South African Republic and ...

Second Chechen War Names The Second Chechen War is also known as the Second Chechen Campaign () or the Second Russian Invasion of Chechnya from the Chechens, Chechen insurgents' point of view.Федеральный закон № 5-ФЗ от 12 января 19 ...

Second Sudanese Civil War The Second Sudanese Civil War was a conflict from 1983 to 2005 between the central Sudanese government and the Sudan People's Liberation Army/Movement, Sudan People's Liberation Army. It was largely a continuation of the First Sudanese Civil Wa ...

Somali Civil War The Somali Civil War (; ) is an List of ongoing armed conflicts, ongoing civil war that is taking place in Somalia. It grew out of resistance to the military junta which was led by Siad Barre during the 1980s. From 1988 to 1990, the Somali Armed ...

* Philippine-American War *

The Troubles The Troubles () were an ethno-nationalist conflict in Northern Ireland that lasted for about 30 years from the late 1960s to 1998. Also known internationally as the Northern Ireland conflict, it began in the late 1960s and is usually deemed t ...

Vietnam War The Vietnam War (1 November 1955 – 30 April 1975) was an armed conflict in Vietnam, Laos, and Cambodia fought between North Vietnam (Democratic Republic of Vietnam) and South Vietnam (Republic of Vietnam) and their allies. North Vietnam w ...

Libyan Civil War (2011) The Libyan civil war, also known as the First Libyan Civil War and Libyan Revolution, was an armed conflict in 2011 in the North African country of Libya that was fought between forces loyal to Colonel Muammar Gaddafi and rebel groups that were ...

* Syrian Civil War *

Iraqi Civil War (2014–2017) Iraqi civil war may refer to: * Iraqi–Kurdish conflict (1918–2003), wars and rebellions by Iraqi Kurds against the government ** First Iraqi–Kurdish War (1961–70) ** Second Iraqi–Kurdish War (1974–75) * 1991 Iraqi uprisings, rebellion ...

Second Libyan Civil War The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes, and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of U ...

Yemeni Civil War (2015–present) Yemeni civil war may refer to several conflicts which have taken place in Yemen: * North Yemen civil war, 1962–1970 * South Yemen civil war, 13–25 January 1986 * Yemeni civil war (1994) * Yemeni civil war (2014–present) Yemeni civil war may r ...

Activities

Activities and types of conflict included in IW are: *

* Civil-military operations (CMO) *

Colonial war Colonial war (in some contexts referred to as small war) is a blanket term relating to the various conflicts that arose as the result of overseas territories being settled by foreign powers creating a colony. The term especially refers to wa ...

Foreign internal defense Foreign internal defense (FID) is a term used by the military in several countries, including the United States Armed Forces, United States, French Armed Forces, France and the British Armed Forces, United Kingdom, to describe an integrated or ...

(FID) *

Guerrilla warfare Guerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, partisans, paramilitary personnel or armed civilians, which may include recruited children, use ambushes, sabotage, terrori ...

(GW) *

Insurgency An insurgency is a violent, armed rebellion by small, lightly armed bands who practice guerrilla warfare against a larger authority. The key descriptive feature of insurgency is its asymmetric warfare, asymmetric nature: small irregular forces ...

Counter-insurgency Counterinsurgency (COIN, or NATO spelling counter-insurgency) is "the totality of actions aimed at defeating irregular forces". The Oxford English Dictionary defines counterinsurgency as any "military or political action taken against the ac ...

(COIN) *

Law enforcement Law enforcement is the activity of some members of the government or other social institutions who act in an organized manner to enforce the law by investigating, deterring, rehabilitating, or punishing people who violate the rules and norms gove ...

activities focused on countering irregular adversaries *

Military Intelligence Military intelligence is a military discipline that uses information collection and analysis List of intelligence gathering disciplines, approaches to provide guidance and direction to assist Commanding officer, commanders in decision making pr ...

and

counter-intelligence Counterintelligence (counter-intelligence) or counterespionage (counter-espionage) is any activity aimed at protecting an agency's intelligence program from an opposition's intelligence service. It includes gathering information and conducting ac ...

activities * Stabilization, Security, Transition, and Reconstruction Operations (SSTRO) *

Terrorism Terrorism, in its broadest sense, is the use of violence against non-combatants to achieve political or ideological aims. The term is used in this regard primarily to refer to intentional violence during peacetime or in the context of war aga ...

Counter-terrorism Counterterrorism (alternatively spelled: counter-terrorism), also known as anti-terrorism, relates to the practices, military tactics, techniques, and strategies that governments, law enforcement, businesses, and intelligence agencies use to co ...

* Transnational criminal activities that support or sustain IW: ** narco-trafficking ** Illicit arms trafficking ** illegal

financial transactions A financial transaction is an agreement, or communication, between a buyer and seller to exchange goods, services, or assets for payment. Any transaction involves a change in the status of the finances of two or more businesses or individuals. ...

Unconventional warfare Unconventional warfare (UW) is broadly defined as "military and quasi-military operations other than conventional warfare" and may use covert forces or actions such as subversion, diversion, sabotage, espionage, biowarfare, sanctions, propaga ...

(UW) According to the DoD, there are five core activities of IW: *

(COIN) *

(CT) *

(UW) *

(FID) * Stabilization Operations (SO)

Modeling and simulation

As a result of DoD Directive 3000.07,

United States armed forces The United States Armed Forces are the Military, military forces of the United States. U.S. United States Code, federal law names six armed forces: the United States Army, Army, United States Marine Corps, Marine Corps, United States Navy, Na ...

are studying irregular warfare concepts using

modeling and simulation Modeling and simulation (M&S) is the use of models (e.g., physical, mathematical, behavioral, or logical representation of a system, entity, phenomenon, or process) as a basis for simulations to develop data utilized for managerial or technica ...

Wargames and exercises

There have been several military

wargames ''WarGames'' is a 1983 American techno-thriller film directed by John Badham, written by Lawrence Lasker and Walter F. Parkes, and starring Matthew Broderick, Dabney Coleman, John Wood and Ally Sheedy. Broderick plays David Lightman, a ...

and military exercises associated with IW, including: * Unified Action, * Unified Quest, * January 2010 Tri-Service Maritime Workshop, * Joint Irregular Warrior Series war games, * Expeditionary Warrior war game series, and * a December 2011 Naval War College Maritime Stability Operations Game focused specifically on stability operations in the maritime domain conducted by the Naval Service.

Notes

References

External links

* Military Art and Science Major - Irregular Warfare Specialty Trac

* Pincus, Walter, "Irregular Warfare, Both Future and Present,"

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, 7 April 200

* Phillips, Joan T., Fairchild, Muir S.,"Irregular Warfare",

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, March 200

* Gustafson, Michael, "Modern Irregular Warfare & Counterinsurgency", Swedish National Defence College, 200

* Coons, Kenneth C. Jr., Harned, Glenn M., "Irregular Warfare is Warfare", Joint Force Quarterly, National Defense University (Washington, D.C.), National Defense University, 200

*

Naval Postgraduate School Naval Postgraduate School (NPS) is a Naval command with a graduate university mission, operated by the United States Navy and located in Monterey, California. The NPS mission is to provide "defense-focused graduate education, including clas ...

(NPS) Center on Terrorism and Irregular Warfare (CTIW

*

United States Joint Forces Command The United States Joint Forces Command (USJFCOM) was a Unified Combatant Command of the United States Department of Defense. USJFCOM was a functional command that provided specific services to the military. The last commander was Army Gen. ...

(

USJFCOM The United States Joint Forces Command (USJFCOM) was a Unified Combatant Command of the United States Department of Defense. USJFCOM was a functional command that provided specific services to the military. The last commander was Army Gen. R ...

) Joint Irregular Warfare Center (JIWC

* ''Armed Groups and Irregular Warfare; Adapting Professional Military Education'', Richard H. Shultz, Richard H. Shultz, Jr., Roy Godson, and Querine Hanlon (Washington, DC: National Strategy Information Center, 2009)

* Tomkins, Paul
Irregular Warfare: Annotated Bibliography.
Fort Bragg, NC:

United States Army Special Operations Command The United States Army Special Operations Command (Airborne) (USASOC) is the command charged with overseeing the various Special forces, special operations forces of the United States Army. Headquartered at Fort Bragg, North Carolina, it i ...

, 2011. {{DEFAULTSORT:Irregular Warfare Warfare by type Military science Military doctrines Military strategy Guerrilla warfare tactics