Undoubtedly at this point of time the United States is the mightiest nation on earth. Its influence and power spans the globe. Not just economically and militarily even the American culture radiates from Sharm el Sheikh to Delhi and from Kiev to Seoul. The United States has enjoyed a pre-eminence unrivalled by even the greatest empires of the past. There are, however, indications that it may have reached its zenith and its pre-eminence is on the wane. If that be true we might be witnessing the strongest empire that has ruled for the shortest period in history.
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