abc news anzus african century african union american century american dream asian century bric brimc balance of power in international relations brazil british empire chinese century country east asia economic growth energy superpower european dream european union future enlargement of the european union geopolitics great power gross domestic product hard power historical powers hyperpower india international herald tribune international relations japan john mccormick lee kuan yew mark leonard middle power military power projection muslim nato newsweek next eleven nuclear weapon parag khanna polarity in international relations political power poverty poverty in india power in international relations power politics power transition theory realpolitik regional power reserve bank of india russia russia and weapons of mass destruction second superpower shanghai cooperation organisation soft power south america soviet union sphere of influence superpower superpower collapse superpower disengagement susan shirk united states university of nottingham