Author: G John Ikenberry.

China's rise will inevitably bring the United States' unipolar moment to an end. But that does not necessarily mean a violent power struggle or the overthrow of the Western system. The U.S.-led international order can remain dominant even while integrating a more powerful China --but only if Washington sets about strengthening that liberal order now. G. JOHN IKENBERRY is Albert G. Milbank Professor of Politics and International Affairs at Princeton University and the author of After Victory: Institutions, Strategic Restraint, and the Rebuilding of Order After Major Wars. The rise of China will undoubtedly be one of the great dramas of the twenty-first century. China's extraordinary economic growth and active diplomacy are already transforming East Asia, and future decades will see even greater increases in Chinese power and influence. But exactly how this drama will play out is an open question. Will China overthrow the existing order or become a part of it? And what, if anything, can the United States do to maintain its position as China rises? Some observers believe that the American era is coming to an end, as the Western-oriented world order is replaced by one increasingly dominated by the East. The historian Niall Ferguson has written that the bloody twentieth century witnessed "the descent of the West" and "a reorientation of the world" toward the East. Realists go on to note that as China gets more powerful and the United States' position erodes, two things are likely to happen: China will try to use its growing influence to reshape the rules and institutions of the international system to better serve its interests, and other states in the system --especially the declining hegemon --will start to see China as a growing security threat. The result of these developments, they predict, will be tension, distrust, and conflict, the typical features of a power transition. In this view, the drama of China's rise will feature an increasingly powerful China and a declining United States locked in an epic battle over the rules and leadership of the international system. And as the world's largest country emerges not from within but outside the established post-World War II international order, it is a drama that will end with the grand ascendance of China and the onset of an Asian-centered world order.