Zaporozhian Host

Zaporozhian Host (or Zaporizhian Sich) is a term for a military force inhabiting or originating from Zaporizhzhia, the territory in what is Southern and Central Ukraine today, beyond the rapids of the Dnieper River, from the 15th to the 18th centuries.

These include:
 * Zaporozhian Sich, a semi-autonomous Cossacks' polity in the 16th–18th centuries
 * Cossack Hetmanate, the Cossack state that the Zaporozhian Sich was formed into between 1649 and 1764
 * Zaporozhian Cossacks, generally
 * Registered Cossacks, Zaporizhian warriors who were recorded as cossacks in official registries of the Polish-Lithuanian Commonwealth between 1572 and 1699