The Buh Cossack Host was a Cossack

Cossack

Cossacks are a group of predominantly East Slavic people who originally were members of democratic, semi-military communities in what is today Ukraine and Southern Russia inhabiting sparsely populated areas and islands in the lower Dnieper and Don basins and who played an important role in the...

 host, which used to be located along the Southern Buh River

Southern Bug

The Southern Bug, also called Southern Buh), is a river located in Ukraine. The source of the river is in the west of Ukraine, in the Volyn-Podillia Upland, about 145 km from the Polish border, and flows southeasterly into the Bug Estuary through the southern steppes...

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The Buh Cossack Host was formed in 1769 out of Ukrainians

Ukrainians

Ukrainians are an East Slavic ethnic group native to Ukraine, which is the sixth-largest nation in Europe. The Constitution of Ukraine applies the term 'Ukrainians' to all its citizens...

, Vlachs

Vlachs

Vlach is a blanket term covering several modern Latin peoples descending from the Latinised population in Central, Eastern and Southeastern Europe. English variations on the name include: Walla, Wlachs, Wallachs, Vlahs, Olahs or Ulahs...

, and Bulgarians

Bulgarians

The Bulgarians are a South Slavic nation and ethnic group native to Bulgaria and neighbouring regions. Emigration has resulted in immigrant communities in a number of other countries.-History and ethnogenesis:...

, who had taken the side of Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

 during the Russo-Turkish War of 1768-1774

Russo-Turkish War, 1768-1774

The Russo-Turkish War of 1768–1774 was a decisive conflict that brought Southern Ukraine, Northern Caucasus, and Crimea within the orbit of the Russian Empire.-Background:...

. After the war, the regiment was quartered on the Southern Buh River. In 1788, the Buh Cossack Host became a part of the Yekaterinoslav Cossack Host (disbanded in 1796) and protected the border. It was disbanded in 1800, only to be created again in 1803 under the original name. The Buh Cossack Host had to provide three regiments of 500 men each in the times of war. In 1817, it was included into the military settlement

Military settlement

Military settlements represented a special organization of the Russian military forces in 1810–1857, which allowed the combination of military service and agricultural employment.-The beginning of the reform:...

s and combined together with the two Ukrainian

Ukraine

Ukraine is a country in Eastern Europe. It has an area of 603,628 km², making it the second largest contiguous country on the European continent, after Russia...

 regiments into a Buh Uhlan

Uhlan

Uhlans were Polish light cavalry armed with lances, sabres and pistols. The title was later used by lancer regiments in the Russian, Prussian, and Austrian armies....

Division.