During 30s and 40s they deported a lot of ethnic groups. Large percent (as much as 40%) died. https://en.wikipedia.org/wiki/Population_transfer_in_the_Soviet_U

During 30s and 40s they deported a lot of ethnic groups. Large percent (as much as 40%) died. https://en.wikipedia.org/wiki/Population_transfer_in_the_Soviet_Union#Ethnic_operations https://en.wikipedia.org/wiki/Population_transfer_in_the_Sov...