I would talk about how Russia was a Communist State and how the Russian leaders controled everything. But first are you talking about current day stuff or back in history?
When you're writing about a complex subject like this, you'll need to pay attention to
It seems to me that you're writing a sort of DEFINITION ESSAY as well as a COMPARISON/CONTRAST ESSAY, right?
And these will help you with COHESION (or how to make it all "stick together" smoothly):