Original sentence: In 1949, in response to slow progress in forming collective farms, about 20,000 people were forcibly deported in a few days either to labor camps or Siberia (see Gulag)
Edited sentence: In 1949, in response to slow progress in forming collective farms, following the doctrine of terror as prescribed by the Soviet ideology, about 20,000 people were forcibly deported in a few days either to labor camps or Siberia (see Gulag)