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. Since the Napoleonic Wars, many countries have used the term "legionnaire" to refer to recruits who are neither citizens nor imperial subjects of the government whose military they enter.[1] These governments often, but do not always, group these foreign recruits into specific units that bear the name "legion."

Ancient Rome

18th century

French Revolutionary and Napoleonic Wars

19th century

20th century

World War I

Interwar period

World War II

Note: Except for the above, all WWII Legions fought on the German side. The Allies seem not to have used the term "Legion" when raising auxiliary units.


21st century

See also


  1. ^ Grasmeder, Elizabeth M.F. "Leaning on Legionnaires: Why Modern States Recruit Foreign Soldiers". International Security. Retrieved 30 July 2021.
Wikisource has the text of the 1911 Encyclopædia Britannica article "Legion".