Late last week, the UN Security Council voted down a resolution, offered by the United States, to indefinitely extend a conventional arms embargo on Iran set to expire in October. The lifting of the arms embargo was one of the sweeteners that was part of the Obama administration's Iran nuclear agreement. Now, the Trump administration has announced it will begin the process of triggering the snapback of UN sanctions on Iran using procedures outlined in UNSCR 2231—a move that could be the death knell for the Iran nuclear agreement. Margaret Taylor sat down with Lawfare senior editor Scott Anderson, and Richard Gowan, the UN director for the Crisis Group, an independent research and advocacy organization, to talk through the legal and political issues, as well as what will unfold on this matter in the weeks and months to come. See acast.com/privacy for privacy and opt-out information.