And later very over-represented were the Georgians, during the Stalinist period. The Georgians also largely killed the Poles (in the Polish Operation purge).
Gustav Bokis, for instance, headed the mechanized forces of the Red Army, Jukums Vācietis served for a while as commander-in-chief, and Jēkabs Alksnis commanded the air force. Having played a key role in the Lockhart affair, Eduards Bērziņš was instrumental in setting up the Gulag system, while his namesake Jānis Bērziņš (real name Pēteris Ķuzis) was the creator and director of Soviet military intelligence.
Militant atheists Jews, you say?
And later very over-represented were the Georgians, during the Stalinist period. The Georgians also largely killed the Poles (in the Polish Operation purge).
Militant atheist Latvians (a tiny Baltic nation):
https://www.rbth.com/history/331104-how-latvians-defended-communism