Those regions that Putin has already bullied into compliance - Georgia, Crimea, and eastern Ukraine - serve as a warning to others of what might be their fate should they resist, and why it is thus wiser to make the necessary adjustments. Should Vladimir Putin suddenly discover persecuted Russian speakers in Estonia, we know the script. He will give speeches about the historical ties of Estonia to Russia; he will list his worries about the supposed maltreatment of Russian speakers; he will warn the world that his Russia is a nuclear, and sometimes unpredictable, power and therefore the world should butt out.