Lecture 5: Challengers

Throughout history, hegemons have been challenged. What challengers is the United States likely to face in coming decades? Owen Harries assesses the prospects of the two most likely sources of challenge to American dominance, China and a united Europe. He looks at military, economic and political capabilities, and at the effects that demographic changes will have on them as well as on America itself. But will America's biggest potential threat be America itself?