A ceasefire is holding in Gaza. Aid is beginning to flow. The remaining Israeli hostages have been released, as have nearly 2,000 Palestinians from Israeli detention.

This has been a truly remarkable day in the Middle East. But can this positive momentum be sustained?

I recorded this conversation with Matt Duss of the Center for International Policy just moments after Donald Trump met with an impressive array of world leaders in Sharm el-Sheikh, Egypt, in a ceremony designed to cement his personal investment in this peace plan. We kick off by discussing the significance of the spectacle and ceremony in Sharm el-Sheikh, then have a longer conversation about how the ceasefire came together and the many pitfalls that remain.

This ceasefire is fragile. Hamas is reconstituting. And the Israeli government remains opposed to a viable Palestinian State. But this is nonetheless a significant inflection point after two years of brutal war.

UNGA is over. But its legacy lives on. We recorded this episode as news broke of a potential ceasefire between Israel and Hamas, and so we look back at UNGA80 to trace the ways in which the world’s largest diplomatic gathering may have provided some key momentum for a breakthrough on Gaza. Mark and Anjali also go deep on a new Gang Suppression Force that the Security Council just authorized for Haiti. But can this international intervention in Haiti succeed when so many before it have failed? Finally, Mark and Anjali make their Nobel Peace Prize picks. Spoiler alert — it ain’t Donald Trump.

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On September 16th, Morocco became the 60th country to ratify the High Seas Treaty, triggering a countdown to January, when the treaty will officially enter into force.

The High Seas Treaty establishes a kind of “rules of the road” for international waters that lie beyond the jurisdiction of any single country—particularly around conservation and the preservation of ocean biodiversity. At the core of the High Seas Treaty is the creation of Marine Protected Areas—think of them as national parks for the high seas. And even though the treaty has not yet entered into force, it is already influencing ocean conservation efforts, according to my guest today, Nichola Clark, a senior officer for ocean governance at the Pew Charitable Trusts.

We begin by discussing why the international community felt the need for a High Seas Treaty in the first place, and then trace the story of how this agreement came to life. We wrap up with a conversation about what the treaty has already accomplished—and what it may achieve in the near future.

This episode is produced in partnership with Lex International Fund, a philanthropic initiative dedicated to strengthening international law to solve global challenges. It’s part of our ongoing series highlighting the real-world impact of treaties on state behavior, called “When Treaties Work.”