Sloboda Ukraine
From 1650 to 1765, the territory referred to as Sloboda Ukraine became increasingly organized according to Cossack military custom, similar to that of the Zaporozhian Host and Don Host. The relocated cossacks became known as Sloboda Cossacks. There were five regimental districts ("polky") of Sloboda Cossacks, named after the towns of their sustained deployment, and subdivided into company districts ("sotni"). Regional centers included Ostrogozhsk, Kharkiv, Okhtyrka, Sumy, and Izyum, while the Sloboda Ukraine Cossack capital was located in Sumy until 1743.