Show Trials and the Great Purges
- Stalin feared being overthrown or having a counter-revolution
- Formed a secret police called the NKVD (now the KGB)
- Old heroes or anyone with popular support (seen as threats to Stalin) were charged with treason
- 1 in 5 officers of the army executed
- Often put on "show trials" where they were forced to admit they had done it (under duress)