"Polish\u2013Lithuanian Commonwealth" . "Berestechko expedition" . . . "20pxCrimean Khanate" . "200,000 total" . . . . "many thousands of peasants" . "Lithuania" . . "Crimean Khanate" . . . . "battle of Berestechko" . . "33,000 Cossacks" . . . . . "16,000 German mercenaries" . . "battle of Beresteczek" . . . "20pxPolish\u2013Lithuanian Commonwealth" . "20pxZaporozhian Cossacks" . . . "Grand Duchy of Lithuania" . . "Battle of Beresteczko" . . "2,000 Don Cossacks" . "17,000 cavalry" . "1651-06-30" . "Beresteczko" . "16,000 infantry" . . . "80,000 total" . "Several thousand Turks and Vlachs" . . . . . . . "Battle of Berestechko" . . . "Berestechko" . "30,000Pospolite ruszenie" . "Cossack army near Berestechko" . "30,000 killed" . . . "Decisive Polish victory" . . . "30,000 Crimean Tatars" . . . . "Battle of Berestechko" . .