The most powerful nation on earth today is the usa. This nation pushes democracy down everyone’s throats. It backs the UN with its forces that closes countries not allowing them to buy nor sell on the open global markets with out being demoncratic. The capitol of this most powerful nation is Washington DC. The address is 1600 Pennsylvania Ave. Used to be 16 Pennsylvania Ave. D = 500, + C = 100, = 600 and the addy gives you the 616. End of story. I will let this thread drop now.