This week on Babel, Jon Alterman speaks with Hans Grundberg, the United Nations' special envoy of the secretary-general for Yemen. They discuss what a UN mediator does, why successful mediation is about more than just reaching a peace agreement, and how the internationalization of conflicts complicates mediation. Then, Jon continues the conversation with Natasha Hall and Leah Hickert to discuss the tradeoffs between different mediators and why the UN separates its humanitarian work from its mediation efforts. Transcript, "Hans Grundberg: Mediation in Yemen," CSIS, April 30, 2024.