 Complete the following phrase:  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 18771878, 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 