Every Nation for Itself: What Happens When No One Leads the World

A world order in which no single country or durable alliance of countries can meet the challenges of global leadership. What happens when the G20 doesn’t work and the G7 is history.

If the worst threatened—a rogue nuclear state with a horrible surprise, a global health crisis, the collapse of financial institutions from New York to Shang­hai and Mumbai—where would the world look for leadership? The United States, with its paralyzed politics and battered balance shee...