Question: What years was this campaign of political repression in the Soviet Union occurring, during which Yakov Ganetsky was executed?
Sentence (from "Great Purge"): It involved a large-scale purge of the Communist Party and government officials, repression of peasants and the Red Army leadership, widespread police surveillance, suspicion of "saboteurs", "counter-revolutionaries", imprisonment, and arbitrary executions.
Relevant evidence: No