Zaporizhian Sich was a pirate republic in Europe from the 16th through to the 18th century. Situated in Cossack territory in the remote steppe of Eastern Europe, it was populated with Ukrainian peasants that had run away from their feudal masters, outlaws, destitute gentry, run-away slaves from Turkish galleys, etc. The remoteness of the place and the rapids at the Dnieper river effectively guarded the place from invasions of vengeful powers.