The unipolar moment has passed. Even old allies stubbornly resist American demands, while many other nations view U.S. policy and ideals as openly hostile to their own. Washington is blind to the fact that it no longer enjoys the dominance it had at the end of the Cold War. It must relearn the game of international politics as a major power, not a superpower, and make compromises. U.S. policymaking should reflect rational calculations of power rather than a wish list of arrogant, unilateralist demands.
Samuel P. Huntington is the Albert J. Weatherhead III University Professor at Harvard University, where he is also Director of the John M. Olin Institute for Strategic Studies and Chairman of the Harvard Academy for International and Area Studies.
THE NEW DIMENSION OF POWER
During the past decade global politics has changed fundamentally in two ways. First, it has been substantially reconfigured along cultural and civilizational lines, as I have highlighted in the pages of this journal and documented at length in The Clash of Civilizations and the Remaking of World Order. Second, as argued in that book, global politics is also always about power and the struggle for power, and today international relations is changing along that crucial dimension. The global structure of power in the Cold War was basically bipolar; the emerging structure is very different.
There is now only one superpower. But that does not mean that the world is unipolar. A unipolar system would have one superpower, no significant major powers, and many minor powers. As a result, the superpower could effectively resolve important international issues alone, and no combination of other states would have the power to prevent it from doing so. For several centuries the classical world under Rome, and at times East Asia under China, approximated this model. A bipolar system like the Cold War has two superpowers, and the relations between them are central to international politics. Each superpower dominates a coalition of allied states and competes with the other superpower for influence among nonaligned countries. A multipolar system has several major powers of comparable strength that cooperate and compete with each other in shifting patterns. A coalition of major states is necessary to resolve important international issues. European politics approximated this model for several centuries.
This is a premium article
You must be a logged in Foreign Affairs subscriber to continue reading. If you wish to continue reading this article please subscribe , or activate your online account to get full online access.
Log In
Buy PDF
Buy a premium PDF reprint of this article.Related
NATO's poorly planned adventure in Kosovo has brought a critical question to the fore: just how should Americans define their national interest in the information age? The Soviet Union is gone, and an information revolution has transformed the nature of power. Few "A list" threats to American security loom large today. Global telecommunications have made humanitarian crises in far-flung places impossible to ignore. But before the United States embarks on another costly human rights crusade, Americans should recognize that moral values are only part of a foreign policy. Other essential priorities remain. If Washington neglects to handle the "A list," the consequences for global peace and prosperity will be dire.
The new president cannot wait until his January 20 inauguration to signal boldly how he will deal with urgent economic problems at home and abroad. He should confront Congress as a tough fiscal conservative on domestic spending and open discussions with German and Japanese leaders on trade, growth, and currency issues.
In the twenty-first century, power will be diffuse rather than concentrated, and the influence of nonstate actors will increase. But the United States can still manage the transition and make the world a safer place.

Sign-up for free weekly updates from ForeignAffairs.com.