A Deal On Fragile Footing:
Iran’s nuclear program has long been the focus of international suspicion. While Tehran insists its activities are peaceful, many countries have accused it of seeking nuclear weapons capability. The 2015 Joint Comprehensive Plan of Action (JCPOA) — negotiated by Iran, the U.S., Britain, France, Germany, Russia, and China — was supposed to end those suspicions. In exchange for strict limits on enrichment and intrusive inspections, Iran received relief from punishing sanctions.
That deal was enshrined in a UN Security Council resolution, and for several years, the arrangement held. But the resolution included a “snapback” clause: if any party accused Iran of significant noncompliance, sanctions could be reimposed swiftly. That mechanism, meant as a deterrent, is now poised to come into force again.
What Is The “SnapBack” Clause?:
Under the JCPOA, the snapback process allowed any party to the deal to trigger the automatic restoration of UN sanctions. Once invoked, the Security Council had 30 days to adopt a resolution continuing sanctions relief — but this required nine affirmative votes and no veto from the five permanent members.
On Sept. 19, the Council voted on such a resolution, but it failed. With no consensus, the clock began ticking. Unless a new arrangement is struck, the sanctions suspended in 2015 will return at 8 p.m. EDT Saturday (0000 GMT Sunday). The measures include an arms embargo, bans on uranium enrichment and ballistic missile activity, asset freezes, and restrictions on Iran’s shipping. These provisions, last seen between 2006 and 2010, will suddenly become active again.
Why Now?:
The so-called E3; Britain, France, and Germany, triggered the process on Aug. 28, citing “significant non-performance” by Iran. The Europeans say Tehran has repeatedly violated enrichment limits and resisted inspections.
The dispute comes as Iran accelerates uranium enrichment to 60% purity, according to the International Atomic Energy Agency. That level is alarmingly close to the 90% threshold required for a nuclear weapon, and far beyond what civilian nuclear power requires. Western officials warn that no country enriches to such levels without intent to build a bomb.
Iran counters that it is acting within its rights after the U.S., under President Donald Trump abandoned the JCPOA in 2018 and restored unilateral sanctions. Tehran argues that the other parties failed to deliver the promised economic relief, giving it grounds to suspend its commitments.
Can Tehran Still Avoid Sanctions?
France, Britain, and Germany have floated a last-minute compromise: extending the snapback mechanism for a limited time to allow further negotiations. Russia and China have gone further, drafting a resolution that would extend the 2015 framework for six months.
But here lies the catch: to delay snapback, the Security Council would have to adopt a new resolution. That requires consensus among members, and so far the positions of Washington, Tehran, and Moscow remain deeply entrenched.
With only hours remaining, the odds of avoiding snapback are slim.
America’s Role:
The United States looms large over this crisis. Trump’s 2018 exit from the JCPOA, calling it “the worst deal ever”, shattered the agreement’s balance. Since then, Washington has pursued a policy of “maximum pressure,” reimposing sanctions and pressing allies to do the same.
Trump now backs the snapback mechanism, framing it as a way to halt Iran’s nuclear program and force Tehran back to the negotiating table. He has also hinted at the possible use of military force, though such threats are often seen as bluster to gain leverage.
Iran, meanwhile, has signaled that any reinstatement of sanctions will prompt it to abandon its remaining JCPOA commitments entirely. That could leave the world with no framework to monitor Iran’s nuclear progress, undoubtedly a risky prospect.
Russian and Chinese Pushback:
Russia and China, both veto-wielding powers, oppose the E3’s move. They argue that the Europeans failed to uphold their end of the JCPOA bargain and therefore lack the authority to trigger snapback.
While Moscow and Beijing cannot stop the sanctions from legally returning, the mechanism is automatic, so they can refuse to implement them. Both have already signaled they may do just that, potentially opening the door for Iran to deepen economic and military ties with two of the world’s great powers.
This sets up a dangerous asymmetry: legally, Iran would be under UN sanctions, but in practice, some of the most powerful UN members may simply ignore them.
The Long Term Significance:
According to Reuters reporting, Iran’s enrichment program is moving at a pace that alarms international monitors. The International Atomic Energy Agency warns that Tehran is now only technical steps away from weapons capability. The return of UN sanctions, even if partially enforced, will heighten tensions in the Middle East and reinforce Iran’s incentives to double down rather than compromise.
The credibility of the UN itself is also at stake. If sanctions are reimposed but ignored by major powers, the Security Council risks looking like an empty shell. This would not be the first time geopolitics paralyzed the Council, but the stakes, nuclear proliferation, regional conflict, great power rivalry, are exceptionally high.
with information from Reuters
