List of military legions

This list of military legions is in chronological order where possible. In modern times, most units using the name "legion" were composed of soldiers from a specific ethnic, national, religious or ideological background, and that background is often specified in the legion's name.

1 Ancient Rome
2 Eighteenth century
3 French Revolutionary and Napoleonic Wars
4 Nineteenth century
5 World War I
6 World War II
7 Other
8 See also

Ancient Rome

List of Roman legions
- Theban Legion, a Roman legion whose members, according to a long-lasting tradition, were massacred for their Christian beliefs

Eighteenth century

Lee's Legion (1776-1783), an infantry and cavalry unit of the American Continental Army
British Legion (American Revolution) (1778-1783), made up of Loyalist American infantry and cavalry
Legion of the United States (1792-1796), an early United States land force

French Revolutionary and Napoleonic Wars

Irish Legion, a French battalion established in 1803 for a future invasion of Ireland
Polish Legions (Napoleonic period), Polish units in the service of Napoleonic France
Legion Belge, Belgian volunteers fighting on the side of the Republicans in the French Revolution
La Legion Noire (The Black Legion), a military unit of the French Revolutionary Army
King's German Legion, a British Army unit of expatriate German personnel that fought against the French during the Napoleonic Wars

Nineteenth century

British Legion (1835), a British military force sent to Spain to support the Liberals and Queen Isabella II against the Carlists in the First Carlist War
Nauvoo Legion, a significant militia in early Mormon history
International Legion, a military force formed by Garibaldi in 1860 during the wars of Italian unification
List of American Civil War legions, both Confederate and Union

World War I

Legion of Ukrainian Sich Riflemen, a corps of the Austro-Hungarian Army
Polish Legions in World War I, part of the Austro-Hungarian Army
Puławy Legion, a Polish formation that was part of the Imperial Russian Army
Czechoslovak Legions, Czech and Slovak volunteer forces fighting on the Triple Entente side
Polish Legion in Finland, fighting for the Finns against the Russians
Italian Legione Redenta, an Italian military formation that participated in the Siberian Intervention during the Russian Civil War
Jewish Legion, in the British Army at Gallipoli and Palestine

World War II

Condor Legion, a unit of "volunteers" from the German Luftwaffe serving with the Nationalists during the Spanish Civil War
Ostlegionen (literally "Eastern Legions"), conscripts and volunteers from the occupied eastern territories recruited into the German Army
Indische Legion, also known as the Free India Legion, an Indian unit raised in 1941 and attached to the German Army
Estonian Legion, a unit in the Waffen SS Verfügungstruppe created in 1942, mainly consisting of Estonian soldiers
Latvian Legion, a formation of the Waffen-SS created in 1943 and consisting primarily of ethnic Latvians
Volga Tatar Legion, one of several units formed by the Wehrmacht out of Soviet prisoners of war according to their ethnicity
Crna Legija (Black Legion), the name given to the 1st and 5th Croatian Ustaše Brigades
Legion of French Volunteers Against Bolshevism (LVF), pro-Nazi French
La Légion Tricolore, a pro-Nazi French unit which was absorbed into the LVF after six months
française des combattants Légion Française des Combattants (French Legion of Fighters), pro-Nazi French
Service d'ordre légionnaire (SOL, Legionary Order Service), extreme-right pro-Nazi French unit attached to the Légion française des combattants

Other

Spanish Legion, an elite unit of the Spanish Army (1920-present)
Arab Legion (al-Jaysh al-Arabī) (1920-1956), the regular army of Transjordan, predecessor of the present Jordanian Army
Foreign legion (disambiguation)
Polish Legions (disambiguation), eleven units at different times between the 18th and 20th centuries (some of which are listed separately above)