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

G-Zero — \JEE-ZEER-oh\ —n
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, a major health crisis, the collapse of the global financial system—where would the world look for leadership?

For the first time in seven decades, there is no single power or alliance of powers ready to take on the challenges of global lead...