The 30-day countdown to the automatic reintroduction of U.N. sanctions against Iran—the “snapback”—has begun. Triggered by Britain, France and Germany (the E3), this long-overdue decision is a response to Tehran’s repeated violations of the 2015 nuclear deal. What matters now is that Europe stands firm and sees the process through.
In response, Iran’s foreign minister, Abbas Araghchi, threatened the E3 directly, warning them to reverse course or prepare for “consequences destructive for the region and beyond on a whole new level.” That this unsubtle threat was delivered via The Guardian, a major European news outlet, shows how confident Tehran has become that it can pressure and manipulate its way out of accountability yet again. Most of all, it is banking on Europe to blink first.
That confidence did not appear overnight. Iran has been in material breach of the nuclear deal—the Joint Comprehensive Plan of Action (JCPOA)—for years: enriching uranium well above 60%, installing advanced centrifuges, stonewalling international inspectors and concealing undeclared nuclear sites. None of this is in dispute. Until now, however, it has all been met with European hand-wringing and hollow warnings, fearing that any enforcement would “kill the deal.”
But the deal had been dead since May 2018, when the United States withdrew. What’s left is a hollow framework Iran no longer respects and the international community no longer enforces. Pretending otherwise only rewards Tehran’s strategy of delay and deception.
When the United States attempted to trigger snapback sanctions in 2020, the effort was blocked on procedural grounds. But that legal debate masked a deeper truth: For too long, Europe chose inaction over integrity. That silence gave Iran space to expand its program, violate its commitments, and act as if the JCPOA’s rules were optional.
The E3 is doing what should have been done years ago. But the job isn’t finished. Over the next few weeks, expect more Iranian threats, attempts to sow division and “urgent” calls to restart talks. None of it changes the facts: Iran has broken the deal beyond all recognition. The snapback measure wasn’t meant to offer up another round of negotiations; it was designed to ensure consequences for noncompliance.
Snapback isn’t just a legal mechanism. It’s a test of the international community’s credibility. If the U.N. Security Council can’t enforce the resolutions it passes, then it sends a clear message to other would-be proliferators: Agreements have no teeth.
This isn’t only about enrichment levels or inspections. Iran’s regional behavior—arming Russia with drones for its war in Ukraine and supporting proxy terrorist groups across the Middle East—is part of the same pattern. Tehran exploits diplomatic hesitancy while actively undermining global security.
Those who argue that sanctions will only escalate tensions fail to mention that appeasement has only accelerated Iran’s nuclear program. The JCPOA was built on verification and consequences. When those disappear, so does the agreement’s value.
The E3 took a bold and necessary step. These countries must now resist the temptation to backpedal in search of a “diplomatic breakthrough” that Iran has no intention of honoring. With less than three weeks remaining on the clock, Tehran is watching, and so is the world. This is not a moment for compromise and appeasement. It is a moment for accountability.
