Preparing for the World Economic Forum in Davos, Switzerland, January 2020
Denis Balibouse / Reuters

Over the last few years, the world has experienced a gradual slide from cooperation to competition to conflict. The post–Cold War international order has been replaced, first by a period of intensifying global rivalry and then by war in Europe. In this new and unsettled era, world leaders must adapt their understanding and practice of geopolitics because time is running out to address critical global challenges.  

In a year that began with conflict and warning signs of geoeconomic fragmentation, it was remarkable that November 2022 delivered a restoration of U.S.-Chinese climate dialogue, a reaffirmation by the G-20 of

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