Since about 2000, the world has been in a period that mixes some aspects of modern life and a much more substantial attenuation of others and features weakening states, fragmenting societies, imbalanced economies, pervasive threats, and the informalization of warfare. This report examines how the U.S.-China rivalry might unfold in this neomedieval era. Many theories about why and how great powers compete will need to be reconsidered.
