When did the campaign of political  repression that Mikhail Demichev was arrested during occur?
Mikhail Demichev Mikhail Demichev (1885 – November 19, 1937) was a Soviet Komdiv (division commander). He fought in the Imperial Russian Army in World War I before going over to the Bolsheviks in the subsequent civil war. He was a recipient of the Order of the Red Banner. During the Great Purge, he was arrested on August 9, 1937 and later executed. After the death of Joseph Stalin, he was rehabilitated in 1956.
Moscow Trials The Moscow Trials were a series of show trials held in the Soviet Union at the instigation of Joseph Stalin between 1936 and 1938 against so called trotskyists and members of right Opposition of the Communist Party of the Soviet Union.