As the world rapidly grows more urban, city leaders are turning to a new form of voluntary, locally oriented diplomacy to coordinate with their global peers on sustainable development, infrastructure…

Brazil, Russia, India, China, and South Africa have created a meaningful partnership over the last several years, but the rivalry between the bloc’s two most powerful members poses an obstacle to gre…

The Trump administration’s approach to ten critical global summits in the year ahead will show whether its pullback from multilateralism in 2017 was an aberration or the start of a new normal.