The problem is bigger than an "EU Politburo"," though. In the modern day, the concept of an "independent and sovereign nation" as was traditionally known is being challenged for EVERYONE by this huge social, political, economic, and digital global web of interdependence. The "butterfly effect" is much more profound today than it ever has been. Even the "Hermit Nation" of North Korea can't fully extricate itself from this web, even they arguably try the hardest. When international mega-corporations, de facto beholden to no single nation, dictate terms to whole nations, even world powers and Superpowers, you can see things are not as simple or regional as one might think.