The new Host grew to be the second largest in Russia. The Kuban Cossacks continued to make an active part in the Russian affairs of the 19th century starting from the finale of the Russian-Circassian War which ceased shortly after the hosts' formation. A small group took part in the 1873 conquest that brought the Khanate of Khiva under Russian control. Their largest military campaign was the Russo-Turkish War (1877–1878), on both the Balkan and the Caucasus fronts. The latter in particular was a strong contribution as the Kuban Cossacks made 90% of the Russian cavalry. Famous achievements in the numerous Battles of Shipka, the defence of Bayazet and finally, in decisive and victorious Battle of Kars where the Cossacks were the first to enter. Three Kuban Cossack regiments took part in the storming of Geok Tepe in Turkmenistan in 1881. During the Russo-Japanese War (1904–1905), the host mobilised six cavalry regiments, five plastun battalions and one battery to the distant region of Russia.