(Editor’s Note: The following is the new concluding chapter of Dr. John J. Mearsheimer’s book The Tragedy of the Great Power Politics. A new, updated edition was released on April 7 and is available via Amazon.)
With the end of the Cold War in 1989 and the subsequent collapse of the Soviet Union two years later, the United States emerged as the most powerful state on the planet. Many commentators said we are living in a unipolar world for the first time in history, which is another way of saying America is the only great power in the international system. If that statement is true, it makes little sense to talk about great-power politics, since there is just one great power.