Multilateralism today faces numerous challenges. This article offers some reflections on those challenges—what they are and how they originated—and how multilateralism can be reinvigorated. It argues that though multilateralism is not a panacea, many of the critical challenges that confront humanity today—biodiversity, cybersecurity, global warming, mass migration, arms proliferation, and the regulation of outer space, as well as the spread of infectious diseases—can be met only with states and peoples cooperating more closely.



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