I lived under Russian/Soviet occupation and Russians suffer with messianic complex with a desire to control of anyone who is not Russian. They combined one the most aggressive form of nationalism with political ideology and they left millions of dead behind. Russia exported one the most brutal ideology in the history, communism and enslaved under it 1/6 of the world population in the world to it. Orthodox Christianity is also one the most reactionary and backward religions in the word, which also reason, why no orthodox country has prosperous economy nor stable government.
Russia is the most dangerous country to the world peace and it will attempt to conquer Europe or any country south of them.