I have a little experience with this and can explain it a little better (for those who aren't familiar. I have a friend who is from Moscow and joined my church.
Anyway, apparently Lenin and Kruschev wanted to have a completely secular society. So much so that they essentially persecuted the religions in the country. God was removed from schools, people of faith were made fun of and ridiculed. As far as I could tell, though, (from my friend's stories) those of faith did not have violence directed at them because of their religion.
So, anyway, that brings us to the fall of communism in the country, and we find a people with a weakened religious theology. But like Duppon is stating, the churches there are being rebuilt. All sects, Jews, Christians (Catholics, Protestants, Mormons, etc), and even Muslims.