 Complete the following phrase:  Attention now turned to the Murid War 1830-1859 in which the mountaineers of Dagestan and Chechnya united and held out until 1859. In the western mountains the long Russo-Circassian War continued. It ended in 1864 with the expulsion to Turkey of several hundred thousand Circassians. The Crimean War 1853-1856 changed little. In the Russo-Turkish War 187778 Russia gained the province of Kars and the port of Batum. During World War I Russia collapsed during the Revolution and the Turks pushed as far east as Baku but then withdrew when their own empire collapsed. In the post-war confusion, Turkey regained Kars. During World War II the Nazis got a little beyond Maikop but were 