Dynamics of ethnopolitical processes after the end of the Caucasian War are analyzed in the report. The author traces back specific features of integration processes in this region, demonstrating unstable character of the latter and inclination of a certain part of indigenous population to separatism. The conclusion ... states that the strive for ethnic isolation had a limited scope at the verge of XIXth-XXth centuries. The author shows links between this desire for ethnic isolation and most extreme manifestations of social radicalism, extremism and terrorism.