Fitzpatrick, Mark

Introduction
It is far better to implement an incomplete but effective nuclear agreement than to scrap it, hoping to achieve the best outcome while ending up with the worst.
Iran’s behaviour is problematic in many ways, including missile tests, abetting regional strife and taking US citizens hostage. Challenges in the nuclear field that used to top the list, however, are no longer an issue – at least not so long as the terms of the Joint Comprehensive Plan of Action (JCPOA), signed in July 2015, remain fulfilled. And so far, they are. According to the International Atomic Energy Agency (IAEA), Iran’s stockpile of lowenriched uranium is far below the amount allowed under the deal’s terms. With Iran’s nuclear programme remaining under strict limits, the prospect of going to war over this is also off the table for the time being.
Considering the other problems that Iran continues to pose, concerned states should prioritise their objectives. Preserving a deal that blocks all Iranian paths to a nuclear weapon is a first-order goal. Only with nuclear weapons would Iran present a direct national-security threat to states beyond its neighbourhood. Impairing Iran’s missile programme is a second-order objective. Stopping Iran’s arms shipments to Yemen is at best a third-order problem, the solution for which lies in an internal political settlement.
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