Don Cossacks

Don Cossacks
	Flag of the Don Cossacks
Total population
	0.2–2 million
Regions with significant populations
Russia: Rostov and Volgograd Oblasts	1,500,000 in 1918; 140,000 in 2010
Languages
	Don Gutar (Southern Russian dialect),;
Religion
	Predominantly Russian Orthodox; Minority Old Believers
Related ethnic groups
	Russians, Ukrainians, Buzava

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Don Cossacks (Russian: Донские казаки, romanized: Donskiye kazaki, Ukrainian: Донські козаки, romanized: Donski kozaky) or Donians (Russian: донцы, romanized: dontsy, Ukrainian: донці, romanized: dontsi), are Cossacks who settled along the middle and lower Don. Historically, they lived within the former Don Cossack Host (Russian: Донское казачье войско, romanized: Donskoe kazache voysko, Ukrainian: Головне Донське військо, romanized: Holovne Dons'ke viis'ko), which was either an independent or an autonomous democratic polity in present-day Southern Russia and parts of the Donbas region of Ukraine, from the end of the 16th century until 1918.

As of 1992, by presidential decree of the Russian Federation, Cossacks can be enrolled on a special register. A number of Cossack communities have been reconstituted to further Cossack cultural traditions, including those of the Don Cossack Host. Don Cossacks have had a rich military tradition—they played an important part in the historical development of the Russian Empire and participated in most of its major wars.