Poor farming practices
It was called Genocide by anyone who told the Truth. It was completely intentional.
Wow there's that "6 million" hmmmm.. and a full decade before 'Hitler'.
The Bolshevik/Soviet 'leadership' was not Russian. They hated Russians.
If you want to know more, read some Aleksandr Solzhenitsyn.
RE: "Believe in Science", informative poster meme