http://www.cnsnews.com/commentary/eric-metaxas/dispense-man-crushes-putins-russia-cracking-down-christianity
Actually, in Ukraine, that is percentage-wise, if we can say that, a more Christian country than Ukraine, one could say Russia is attacking a Christian country.
But the Baltics, Russia and Ukraine, have a large number of unbelievers.
But at the same time, Russia has a rather large Muslim population, since Russia is a huge nation, it translates to something like better than 20 million, 22 or so.