When the Bolsheviks seized power in 1917, they set themselves the task of building socialism in the vast landscape of the former Russian Empire, a territory populated by hundreds of different peoples belonging to a multitude of linguistic, religious, and ethnic groups. Before 1917, the Bolsheviks had called for the national self-determination of all peoples and had condemned all forms of colonization as exploitative. After attaining power, however, they began to express concern that it would not be possible for Soviet Russia to survive without the cotton of Turkestan and the oil of the Caucasus. In an effort to reconcile their anti-imperialist position with their desire to hold on to as much territory as possible, the Bolsheviks integrated the national idea into the administrative-territorial structure of the new Soviet state. In Empire of Nations, Francine Hirsch examines the ways in which former imperial ethnographers and local elites provided the Bolsheviks with ethnographic