During the world war, Russian military power kept any recurrence of the 1905 troubles between Armenians and Azeri Turks from breaking out. However, strife arose once again during the Russian Revolution when Russian power disappeared. The population of the largest city of Azerbaijan, Baku, was made up primarily of Turks, Armenians, and Russians. Because of the highly developed oil industry in Western Transcaucasia, Baku was an industrialized city and had a large class of industrial workers. The effects of the Russian Revolution thus were seen in Baku more than in the rest of the Transcaucasian region. The city was ruled by a revolutionary government (the so-called Baku Commune) in which most power was held by the Dashnak Party and the Bolsheviks.