Mezue ahịrịokwu na-esonụ: Nnupụisi Khmelnytsky, nke kasị ukwuu n'ime nnupụisi ndị Cossack, kpataara Commonwealth ọdachi. Ndị Cossacks, ndị ha na ndị Tatars jikọrọ aka, meriri ndị agha nke Commonwealth n'ọtụtụ agha, Commonwealth meriri nnukwu mmeri na Berestechko, mana alaeze Polish-Lithuanian mechara "merụọ ahụ nke ukwuu". Akụkụ ọwụwa anyanwụ nke ókèala ya furu efu na Russia, nke rụpụtara mgbanwe ogologo oge na nguzozi ike. N'oge na-adịghị anya, mba ahụ na-ada mbà n'oge nke
mwakpo ndị Sweden.