Uman and Lysianka became the places of the most violent conflict during Koliivshchyna. At Uman Zaliznyak joined forces with Ivan Gonta, who was initially ordered by Bar confederation to attack Zaliznyak. Gonta and his men were the only household Cossacks joining Koliivshchyna. Other household Cossacks remained loyal to either the Polish Crown or Bar confederation. After Uman fell (see Massacre of Uman), Zaliznyak declared the reinstatement of Hetman State of Right-bank Ukraine and himself the new right-bank Hetman. The Koliivshchyna movement overwhelmed the Poles, and they appealed to Russia for help. Fearing that the rebellion would ignite a war with Turkey, Catherine crushed the rebels (known as "haydamaky" – see Haidamaka). Zaliznyak and Gonta were captured by Russian colonel Guriev.