A private army (or private military) is a

military A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a d ...

force under the command of a private person or organization, rather than a nation or state.

History

Private armies may form when landowners arm household retainers for the protection of self and property in times of strife, and where and when central government is weak. Such private armies existed for example in the Roman Empire following the collapse of central authority. The dynamics at play in such circumstances can be observed in modern-day Colombia: on the one hand there are those forces affiliated with the

drug cartel A drug cartel is a criminal organization composed of independent drug lords who collude with each other in order to improve their profits and dominate the illegal drug trade. Drug cartels form with the purpose of controlling the supply of the i ...

s, existing to protect their criminality, and on the other those of the landlords created to resist kidnappings and

extortion Extortion is the practice of obtaining benefit (e.g., money or goods) through coercion. In most jurisdictions it is likely to constitute a criminal offence. Robbery is the simplest and most common form of extortion, although making unfounded ...

, i.e. Muerte a Secuestradores and the Autodefensas Unidas de Colombia. In many places these private household retainers evolved into feudal-like structures, formalising obligations and allegiances and becoming household troops, and in some cases gaining the strength to allow them to usurp power from their nominal

suzerain A suzerain (, from Old French "above" + "supreme, chief") is a person, state (polity)">state or polity who has supremacy and dominant influence over the foreign policy and economic relations of another subordinate party or polity, but allows i ...

or to create new sovereign states. Private armies may also form when co-religionists band together to defend themselves from real and perceived persecution and to further their creed, for example the Hussites, the Mormon

Nauvoo Legion The Nauvoo Legion was a state-authorized Latter-day Saints Militias and Military Units, militia of Nauvoo, Illinois, United States from February 4, 1841 until January 29, 1845. Its main function was the defense of Nauvoo and surrounding Latte ...

and the

Mahdi Army The Mahdi Army () was an Iraqi Shia militia created by Muqtada al-Sadr in June 2003 and disbanded in 2008. The Mahdi Army rose to international prominence on April 4, 2004, when it spearheaded the first major armed confrontation against the ...

in Iraq; because of their nature, such

militias A militia ( ) is a military or paramilitary force that comprises civilian members, as opposed to a professional standing army of regular, full-time military personnel. Militias may be raised in times of need to support regular troops or serve ...

are formed by or fall under the influence of charismatic leaders, and can become instruments of personal ambition.

Examples

East Asia

* Sōhei: the warrior monks of Japan owed their loyalty not to the state or even the Emperor but to their monasteries. *The

Presidency armies The presidency armies were the armies of the three Presidencies of British India, presidencies of the East India Company's Company rule in India, rule in India, later the forces of the the Crown, British Crown in British Raj, India, composed pr ...

of the

British East India Company The East India Company (EIC) was an English, and later British, joint-stock company that was founded in 1600 and dissolved in 1874. It was formed to Indian Ocean trade, trade in the Indian Ocean region, initially with the East Indies (South A ...

, and the armed forces of the

Dutch East India Company The United East India Company ( ; VOC ), commonly known as the Dutch East India Company, was a chartered company, chartered trading company and one of the first joint-stock companies in the world. Established on 20 March 1602 by the States Ge ...

. Both possessed powerful armies and navies, administering areas many times the size of their homelands. *The militaries of the Indian princely states, during the

British Raj The British Raj ( ; from Hindustani language, Hindustani , 'reign', 'rule' or 'government') was the colonial rule of the British The Crown, Crown on the Indian subcontinent, * * lasting from 1858 to 1947. * * It is also called Crown rule ...

, which were mainly for ceremonial duties, protection of their princes, and internal security within their states. *Chinese '' Junfas'' during the

Warlord Era The Warlord Era was the period in the history of the Republic of China between 1916 and 1928, when control of the country was divided between rival Warlord, military cliques of the Beiyang Army and other regional factions. It began after the de ...

following the death of

Yuan Shikai Yuan Shikai (; 16 September 18596 June 1916) was a Chinese general and statesman who served as the second provisional president and the first official president of the Republic of China, head of the Beiyang government from 1912 to 1916 and ...

in 1916. * The SMR Zone defence force in

Manchukuo Manchukuo, officially known as the State of Manchuria prior to 1934 and the Empire of Great Manchuria thereafter, was a puppet state of the Empire of Japan in Northeast China that existed from 1932 until its dissolution in 1945. It was ostens ...

. * The Royal Johor Military Force of the state of

Johor Johor, also spelled Johore,'' is a States and federal territories of Malaysia, state of Malaysia in the south of the Malay Peninsula. It borders with Pahang, Malacca and Negeri Sembilan to the north. Johor has maritime borders with Singapore ...

and the private royal guard of

Sultan of Johor The Sultan of Johor (Malay language, Malay: ''Sultan Johor''; Jawi script, Jawi: ) is a hereditary seat and the sovereign ruler of the Malaysian state of Johor. In the past, the sultan held absolute power over the state and was advised by a '' ...

Malaysia Malaysia is a country in Southeast Asia. Featuring the Tanjung Piai, southernmost point of continental Eurasia, it is a federation, federal constitutional monarchy consisting of States and federal territories of Malaysia, 13 states and thre ...

. * In the mid-twentieth century in the Philippines, the most notable private armies were the Civilian Guards (''Guardia Civil'') formed by landowners in the Central Luzon to fight the Huks. In 2001, the Ampatuan Militia was formed, and in 2009 it committed a

massacre A massacre is an event of killing people who are not engaged in hostilities or are defenseless. It is generally used to describe a targeted killing of civilians Glossary of French words and expressions in English#En masse, en masse by an armed ...

, which led to its disbandment in the same year. In

2013 2013 was the first year since 1987 to contain four unique digits (a span of 26 years). 2013 was designated as: *International Year of Water Cooperation *International Year of Quinoa Events January * January 5 – 2013 Craig, Alask ...

, the Royal Forces of the

Sultanate of Sulu The Sultanate of Sulu (; ; ) is a Sunni Muslim subnational monarchy in the Philippines, Republic of the Philippines that includes the Sulu Archipelago, coastal areas of Zamboanga City and certain portions of Palawan in today's Philippines. H ...

tried to invade Sabah.

Europe

Victual Brothers The Victual Brothers () were a loosely organized guild of privateers who later turned to piracy. They affected maritime history, maritime trade during the 14th century in both the North Sea, North and Baltic Sea, Baltic Seas. They were initially ...

, a pirate brotherhood that for a time became a power in the Baltic. * Atholl Highlanders, a purely ceremonial group which claims to be the only private army in Europe. *German ''

Freikorps (, "Free Corps" or "Volunteer Corps") were irregular German and other European paramilitary volunteer units that existed from the 18th to the early 20th centuries. They effectively fought as mercenaries or private military companies, rega ...

'' after the

First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

were usually only loyal to their commanders, and not to the

Weimar Republic The Weimar Republic, officially known as the German Reich, was the German Reich, German state from 1918 to 1933, during which it was a constitutional republic for the first time in history; hence it is also referred to, and unofficially proclai ...

. * Crusading orders: for example the

Knights Templar The Poor Fellow-Soldiers of Christ and of the Temple of Solomon, mainly known as the Knights Templar, was a Military order (religious society), military order of the Catholic Church, Catholic faith, and one of the most important military ord ...

Knights Hospitaller The Order of Knights of the Hospital of Saint John of Jerusalem, commonly known as the Knights Hospitaller (), is a Catholic military order. It was founded in the crusader Kingdom of Jerusalem in the 12th century and had headquarters there ...

and the

Teutonic Knights The Teutonic Order is a Catholic religious institution founded as a military society in Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Saint Mary in Jerusalem was formed to aid Christians on their pilgrimages to t ...

Russia and Caucasus

* The Russian

Wagner Group The Wagner Group (), officially known as PMC Wagner (, ), is a Russian state-funded private military company (PMC) controlled 2023 Wagner Group plane crash, until 2023 by Yevgeny Prigozhin, a former close ally of Russia's president Vladimir Pu ...

had been accused of being the private army of

Yevgeny Prigozhin Yevgeny Viktorovich Prigozhin (1 June 1961 – 23 August 2023) was a Russian mercenary leader and oligarch. He led the Wagner Group, a private military company, and was a close confidant of Russian president Vladimir Putin until launching a ...

Americas

* The Mongoose Gang was a private army or militia which operated from 1967 to 1979 under the control of Sir Eric Gairy, the Premier and later Prime Minister of

Grenada Grenada is an island country of the West Indies in the eastern Caribbean Sea. The southernmost of the Windward Islands, Grenada is directly south of Saint Vincent and the Grenadines and about north of Trinidad and Tobago, Trinidad and the So ...

India

* Kuer Sena, a

Rajput Rājpūt (, from Sanskrit ''rājaputra'' meaning "son of a king"), also called Thākur (), is a large multi-component cluster of castes, kin bodies, and local groups, sharing social status and ideology of genealogical descent originating fro ...

private army which operated in the Indian state of

Bihar Bihar ( ) is a states and union territories of India, state in Eastern India. It is the list of states and union territories of India by population, second largest state by population, the List of states and union territories of India by are ...

during the 1970s and 1980s. * Lorik Sena, a

Yadav Yadavs are a grouping of non-elite, peasant-pastoral Quote: "The Yadavs were traditionally a low-to-middle-ranking cluster of pastoral-peasant castes that have become a significant political force in Uttar Pradesh (and other northern states l ...

private army which operated in the Indian state of Bihar from 1982 to 1990. * Bhumi Sena, a Awadhiya kshatriye private army which operated in the Indian state of Bihar from 1982 to 1990. * Ranvir Sena, a

Bhumihar Bhumihar, also locally called Bhuinhar and Babhan, a Hindu Indian caste system, caste mainly found in Bihar (including the Mithila (region), Mithila region), the Purvanchal region of Uttar Pradesh, Jharkhand, the Bundelkhand region of Madhya ...

private army is a functioning militia group in the Indian state of Bihar.

References

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