The Nuclear Deal (JCPOA): A Path Not Taken

The Joint Comprehensive Plan of Action (JCPOA), agreed in July 2015 between Iran and the P5+1 (US, UK, France, Russia, China, Germany), was the most significant diplomatic achievement in US-Iran relations in decades. It was also, arguably, the last best chance to avoid the current conflict.

What Iran Agreed To

• Reduce uranium enrichment from 20% to 3.67% (weapons-grade is ~90%)
• Reduce centrifuge count from ~19,000 to 6,104
• Reduce enriched uranium stockpile by 98%
• Convert the Fordow facility to a research center
• Redesign the Arak heavy water reactor to prevent plutonium production
• Allow IAEA inspectors unprecedented access to all nuclear facilities

What Iran Got

• Relief from nuclear-related sanctions
• Access to ~$100 billion in frozen overseas assets
• Resumption of oil exports and international trade

It Was Working

The IAEA confirmed Iran's compliance in every quarterly report from 2016 through 2018. Iran was keeping its end of the deal. Enrichment levels were within limits. Centrifuges were reduced. Inspectors had access.

The deal had problems — it didn't address Iran's missile program or regional activities. But on the nuclear question specifically, it was working as designed.

Then It Was Destroyed

On May 8, 2018, President Trump unilaterally withdrew the United States from the JCPOA, despite Iran's verified compliance. He reimposed "maximum pressure" sanctions. European allies objected but couldn't prevent the US from sanctioning anyone who traded with Iran.

Iran initially maintained compliance, hoping Europe could salvage the deal. When that failed, Iran gradually resumed enrichment — eventually exceeding pre-JCPOA levels and approaching weapons-grade enrichment.

The Biden administration failed to restore the deal. Trump's second administration reimposed "maximum pressure 2.0."

The diplomatic path that had worked was abandoned. The military path that followed led to February 28, 2026.