In Transcaucasia, Cossacks took part in the Russo-Turkish War (1828–1829) where they participated in the Siege of Kars and other key battles. After Yermolov was recalled from the Caucasus, a new reform took place and the interim regiments in the central Caucasus were united with the three Hosts on the Terek to form the Caucasus Line Cossack Host (Кавказское линейное казачье войско, "Kavkazskoye lineynoye kazachye voysko") in 1832, and the new Nakazny Ataman was named Peter Verzilin. Several reforms followed: In 1836 the Kizlyar and Family regiments were united and made responsible for the Terek Delta, and in 1837 a Malorossiyan (Little Russian) regiment (formed in 1831 to combat the November Uprising in Poland) was resettled on the upper Terek north of Vladikavkaz. In 1842 the regiment was incorporated into the Line host. This was followed by the formation of the Sunzha regiment with its Ataman Sleptsov.