A hyperpower is a nation with such a preponderance of military, economic, and cultural strength that it may act independently of any other nation.
In the macronational world, the United States in the post-Cold War era is sometimes referred to as a hyperpower.
No identifiable hyperpower currently exists within the micronational community. The dispersed nature of the community and the limited resources available to micronations makes the emergence of one dominant power highly unlikely, though effective hyperpowers may exist within regions.
One example of a past hyperpower is the Arian Empire, which was the giant of the Maryland civilization and against which most of the civilization's other countries defined their cultures and plotted their foreign policies.