[momincombatboots]

I was reading about this very thing last night in The Black Book of Communism.
Aside from the exposition of by the numbers deaths in Russia, this relationship was news to me, so ot eas interesting.

[AdmSmith]

This was the result of the secret Nazi-Soviet Pact (known as the Molotov-Ribbentrop Pact) on the map



The Soviet Military Parade in Brest-Litovsk, Poland, (nowadays in Belarus) on September 22, 1939, marked the city’s handover to the Red Army. 2,5 min video:

https://www.youtube.com/watch?v=SKo-UPB6Yo4