In 1768, led by Zaporozhian Cossack Maksym Zalizniak and leader of the Uman Cossack paramilitary group Ivan Gonta, the peasants were initially successful in conquering much of the Kiev and Bracław Voivodeships, as well as large chunks of Volhynia and Podolia. In captured territories the nobility, Ukrainian Catholics, Jesuits and above all the Jews, were murdered "en masse" (see Massacre of Uman), which led to a quick response by the Polish army. By July of the same year the Poles – with Russian military assistance – had suppressed the revolt, though bloody repression against the Cossacks lasted for several years. See Koliyivschyna article for more details.