Carolyn Rodrigues-Birkett is a Guyanese diplomat and candidate for Secretary-General of the United Nations. If selected, she would become both the first woman and the first person of Indigenous descent to lead the world body. She joins Mark for a substantive conversation about her vision for the UN at a moment of profound strain on the multilateral system. Drawing on her experience representing Guyana on the Security Council, Rodrigues-Birkett discusses what she learned about the UN's strengths and limitations in preventing and resolving conflict—and what she would do differently as Secretary-General. She also lays out her approach to global development and global health, and makes the case for diplomacy and international cooperation as essential tools for tackling the challenges ahead.