He would send those who were opposing him to Gulags.
Explanation:
The BBC writes that 14 million people went through the gulag of "labor camps" from 1929 to 1953.
An additional 6 to 7 million were deported and exiled to distant parts of the USSR, and another 4-5 million went through " labor colonies, ”which meant serving shorter time sentences.
The total population in the camps varied from 510,307 (1934) to 1,727,970 (1952).
According to a 1993 study of Soviet archives, a total of 1,053,829 people died in the gullies from 1934 to 1953.
These estimates exclude those who died shortly after their release, and whose deaths were the result of cruel treatment in the camps; such cases were common. Studies that take these cases into account for the same time period report a figure of 1,258,537, with an estimated 1.6 million from 1929 to 1953.