You should read this report on Russian demographics because it is scary and it goes with an upcoming Chieftain of Seir essay.

If you are intimidated by the size of the document you can just consider the executive summary to be an essay (which it practically is) and skip the rest.) Keep in mind as you are reading it that this document was put together by Russians. As such they pulled a lot of punches because they were afraid of the government.

At least, in the executive summary they did. The main body of the text is a little more hard hitting. But it still glossed over some serious issues.