Crimean Tatars being herded onto trains for deportation by the Stalinist regime, where 22-40% would die after 5 years of forced labor and resettlement, 1944
The worst part about this is that it wasn't a one time sort of thing. The forced relocation was enforced until just before the Soviet Union fell. As a note, every other ethnic group that Stalin forced into relocation were allowed to begin returning home in 1956, but not the Crimean Tatars.
Stalin also tried to kill them off via famine in the 1920s.
This is bad, however, there's some hope. From wiki,
Starting in 1967, a few were allowed to return and in 1989 the Supreme Soviet of the Soviet Union condemned the removal of Crimean Tatars from their motherland as inhumane and lawless, but only a tiny percent were able to return before the full right of return became policy in 1989.
The Russians committed so many genocides to natives all over Eurasia you cant even count them...yet no one today cares. There are whole groups of people basically erased because of them
Including Circassian genocide in mid 19th century. Some people in North Caucasus (also in Turkey, which received survivors) still try to keep this memory alive. If Kerch bridge survives, maybe one day it could help link Crimea and Circassia. But how far should we go back in history - what about Genghis Khan? The Mongol empire split Kievan Rus - Ivan Grozni would have argued he was fighting back. Now it's 21st century we need general agreement not to make any empires great again.
Stalin was a big fan of genocide, especially in Ukraine. He also deported all the Jews to Siberia and created a "Jewish Oblast" in the middle of nowhere, the only place Soviet Jews were allowed to live unless they were extremely useful.
What a colossal bastard. His only benefit was he fought Hitler.
And he was perfectly happy to work with Hitler until Hitler betrayed him with Barbarossa. Colossal bastard doesn't begin to describe what an absolute fuckface he was.