In 1922 Russians have won the war against Ukrainian People's Republic.
After 20 years, vast majority of Ukrainians who opposed the occupation were dead, scared to death, refugees in other countries, or in forced labor camps in Siberia and other remote places of USSR.
I'm afraid Russians have already started re-implementing elements of the same 100 years old strategy: https://www.hrw.org/news/2022/09/01/forcible-transfer-ukrain...