Construction of industry in these locations required massive input by the Soviet regime .
During the later years of the Soviet Union , most notably during the Brezhnev stagnation era , Soviet authorities exploited fuel resources from inhospitable areas , notably Siberia and the Far East .
Construction of industry in these locations required massive input by the Soviet Union regime .
During the later years of the Soviet Union , most notably during the Brezhnev stagnation era , Soviet authorities exploited fuel resources from inhospitable areas , notably Siberia and the Far East .