[RussianConservative]

Most starvation in or around front. My father and family evacuated from eastern Ukraine, had enough to eat. I have accounts of family members and friends of family who were there.

[NP-INCOMPLETE]

Russia had starvation even before WWII. The war only made it worse since the resources of the entire society had to be mobilized for war. 5-6 million people dying over 6 years within a total population of 150 million is totally plausible.