In a little over two centuries, America has grown from a regional power to a superpower, and to what is today called a hyperpower. But can America retain its position as the world's dominant power, or has it already begun to decline?

Historians have debated the rise and fall of empires for centuries. To date, however, no one has studied the far rarer phenomenon of hyperpowers-those few societies that amassed such extraordinary military and economic might that they essentially dominated the world.
Now, in this sweeping history of globally dominant empires, bestselling author Amy Chua explains how hyperpowers rise and why they fall. In a series of brilliantly focused chapters, Chua examines history's hyperpowers-Persia, Rome, Tang China, the Mongols, the Dutch, the British, and the United States-and reveals the reasons behind their success, as well as the roots of their ultimate demise.
Chua's unprecedented study reveals a fascinating historical pattern. For all their differences, she argues, every one of these world-dominant powers was, at least by the standards of its time, extraordinarily pluralistic and tolerant. Each one succeeded by harnessing the skills and energies of individuals from very different backgrounds, and by attracting and exploiting highly talented groups that were excluded in other societies. Thus Rome allowed Africans, Spaniards, and Gauls alike to rise to the highest echelons of power, while the "barbarian" Mongols conquered their vast domains only because they practiced an ethnic and religious tolerance unheard of in their time. In contrast,

Nazi Germany and imperial Japan, while wielding great power, failed to attain global dominance as a direct result of their racial and religious intolerance.
But Chua also uncovers a great historical irony: in virtually every instance, multicultural tolerance eventually sowed the seeds of decline, and diversity became a liability, triggering conflict, hatred, and violence.
The United States is the quintessential example of a power that rose to global dominance through tolerance and diversity. The secret to America's success has always been its unsurpassed ability to attract enterprising immigrants. Today, however, concerns about outsourcing and uncontrolled illegal immigration are producing a backlash against our tradition of cultural openness. Has America finally reached a "tipping point"? Have we gone too far in the direction of diversity and tolerance to maintain cohesion and unity? Will we be overtaken by rising powers like China, the EU or even India?
Chua shows why American power may have already exceeded its limits and why it may be in our interest to retreat from our go-it-alone approach and promote a new multilateralism in both domestic and foreign affairs.

Amy Chua smartly condenses the complex histories of the Persian, Mughal, Dutch, and other empires into an irresistible argument: that empires expand through toleration and contract through close-mindedness. As with any shrewd and elaborate argument, the getting there is half the fun."
-Robert D. Kaplan, Atlantic Monthly correspondent, visiting professor in national security at the U. S. Naval Academy, and author of Balkan Ghosts and Imperial Grunts

"Scintillating history, breathtaking in scope and chock-full of insight. Amy Chua argues persuasively that the real key to acquiring and maintaining great power lies in the ability to attract and assimilate, rather than to coerce or intimidate."
-Andrew J. Bacevich, author of The New American Militarism: How Americans Are Seduced by War

"Amy Chua is a law professor, but in this book she writes as a sage historian. She draws lessons from the past that one who cares about the future cannot afford to ignore."
-Amitai Etzioni, author of Security First: For A Muscular, Moral Foreign Policy

"From ancient Achaemenid Persia to the modern United States, by way of Rome, Tang China and the Spanish, Dutch and British Empires, Amy Chua tells the story of the world's hyperpowers -- that elite of empires which, in their heyday, were truly without equal. Not everyone will be persuaded by her ingenious thesis that religious and racial tolerance was a prerequisite for global dominance, but also the slow solvent of that cultural "glue" which holds a great nation together. But few readers will fail to be impressed by the height of this book's ambition and by the breadth of scholarship on which it is based."
-Niall Ferguson, Laurence A. Tisch Professor History, Harvard University, and author of Empire: The Rise and Demise of the British World Order.

AMY CHUA is the John Duff Jr. Professor of Law at Yale Law School. She is the author of World on Fire and is a noted expert in the fields of international business, ethnic conflict, and globalization. She lives in New Haven, Connecticut, with her husband and two daughters.