Because the US-led world order centered around a group of like-minded countries, which comprised less than half of the world, America cannot really be considered a global hegemon. Nonetheless, the US has played a vital role in world affairs for decades, and is likely to continue to do so, though in new and unforeseeable ways.
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CAMBRIDGE – No country in modern history has possessed as much global military power as the United States. Yet some analysts now argue that the US is following in the footsteps of the United Kingdom, the last global hegemon to decline. This historical analogy, though increasingly popular, is misleading.