industrialization internal struggles joseph stalin established near total control soviet society wielding virtually unrestrained power following lenin 's death stalin wrestled gain control soviet union rival factions politburo especially leon trotsky 's trotskyists either exiled rendered powerless stalin ready put radical programme industrialisation action ref name deutscbher deutscher ''stalin political biography'' oxford university press pp ref fourth flag soviet union variant used stalin proposed first five year plan ref name richman abolishing nep
Humanities History Russian history