You're talking absolute crap. Putin only spews this crap as some kind of political justification. If he was the slightest seriously concerned about that he would have known that Sweden and Finland would join NATO if threatened which is exactly what happened. His real motivation was imperialistic greed. Take the Ukraine and steal it's resources. He even mentioned on State TV he was feeling a bit bored and wanted some action. He's an evil bastard that has to be defeated.