That was because of Stalin's modernization of Sovjet Union by force if I remember correcly. Also, the nazis during the Barbarossa offensive killed many civilians for the German's "lebensraum". Am I right? Correct me if I'm wrong, this is not the part of history I know the best.
26,6 Mln are losses during the WW2: killed, diseases, starvation, etc. It's a huge losses. That's why for Russians & all ex-Soviets the 9 of May is not a day of the victory. It's a sacral day of the Memory. Stalin's modernization (industrialization and collectivization) is an other story. It was completed by the end of 1930s.
Alright thank you! As I said this is not the subject I know the most about so thanks for teaching me about this period. If I understood it correctly, you don't only like the GNW but Russian military history over all?
My main focus is Russian military history 1650-1730s & related topics