Deputy Foreign Minister Sergei Ryabkov MOSCOW, Jan 13 Russia is now NATO's main adversary, only because it is trying to firmly defend its interests, said Russian Deputy Foreign Minister Sergei Ryabkov. «Russia is now the main enemy of NATO only because it strives to firmly and consistently defend its own interests,» he said in an interview with RTVI. Ryabkov: US wants to blow off steam from Russia's security initiative