Both Russia and China have several bones to pick with Europe, and up through the Serbian Kosovo war they haven't been able to pick 'em because of US (NATO) backing and influence.
No more. That backing will end or Russia (and China) will extract a steep price from us, and Europe.
If Russia controls European security (and safety from terrorist Muslim states), you will see major Economic cooperation of Western Europe with Russia (and China) and near nil with petro terrorist mid east states and Muslim agitating populations.
From your point of view, Russia is promoting and backing Christianity over Islam, and I'm not sure that is crazy at all.
My apology Navy Patriot, was off track on this thread also.
Are you saying Russia is concerned about Muslim takeover of Europe?
Russia and China are aligned with Iran and those three will be soon aligned with the EU...just how in the world does that qualify as backing Christianity over Islam?