Why should Russia approve my country membership in EU or NATO? The only reason is if Russia has some claims on my country territory that wants to use in future.

Why should Russia approve my country membership in EU or NATO? The only reason is if Russia has some claims on my country territory that wants to use in future. But I want to hear a good reason why Russia should have the right to object. I am so happy that my country Romania managed to enter in NATO just to be safe from the Russia threat but unfortunately our brothers in Moldova are still in danger.