Iran's Nuclear Ambitions at Crossroads as Regime Weighs NPT Withdrawal

Iran's nuclear program stands at a pivot point. The country is openly debating whether to withdraw from the Treaty on the Non-Proliferation of Nuclear Weapons—a move that would reshape the geopolitics of the Middle East and signal a fundamental shift in Tehran's approach to atomic weapons. At the same time, satellite imagery shows construction crews at two major nuclear complexes that were damaged in recent airstrikes, suggesting the regime is moving sensitive equipment and operations deeper underground.

The contradiction is stark. In a September interview with Fox News, Iranian President Masoud Pezeshkian offered a path toward de-escalation: Tehran would dilute its stockpile of uranium enriched to 60% and open its nuclear program to international inspection, he said, if a comprehensive agreement could be negotiated under international law. The message was calibrated for Western ears—diplomatic, measured, open to negotiation. But within days, military and political figures in Tehran were saying something different. Mohsen Rezaei, secretary of Iran's Supreme National Security Council, declared that American and Israeli actions had created justification for Iran to leave the NPT. He stopped short of announcing a decision, but the statement signaled that withdrawal was no longer theoretical.

Satellite imagery published by The Daily Telegraph on September 19 showed the physical reality behind these competing signals. At Parchin, a military complex southeast of Tehran, Iran was constructing new facilities and rebuilding ones destroyed in airstrikes. Near Natanz, another major nuclear site, construction crews were working on a complex burrowed beneath what is known as Pickaxe Mountain. Both locations had been targeted during what the Pentagon called Operation Epic Fury and Israel called Operation Roaring Lion—a war that killed Iran's Supreme Leader Ali Khamenei in an Israeli air strike in February 2026. The reconstruction effort suggested that Iran was moving enriched uranium and equipment to locations harder to target from the air.

The United States has made its position unambiguous. On September 22, President Donald Trump told the UN General Assembly: "I will never allow Iran to have a nuclear weapon." But Trump's certainty masks a deeper problem: the International Atomic Energy Agency has lost access to Iranian military sites and can no longer verify what is happening inside them. In December 2024, the IAEA assessed that Iran possessed uranium enriched to 60%—a level no other non-nuclear weapons state has achieved. Ninety percent enrichment is required for a bomb. But without inspectors on the ground, no one outside Iran knows how close the country has come to crossing that threshold.

The 2015 nuclear agreement, known as the JCPOA, had imposed strict limits on Iran's enrichment in exchange for sanctions relief. But the accord collapsed when Trump withdrew in 2018, citing inadequate provisions for inspecting military sites. John Bolton, Trump's former national security adviser, told Deutsche Welle that Iran has been violating the NPT for more than three decades and that diplomatic agreements have served only as "cover for an unalterable strategy pursued by Tehran." Bolton argued that the IAEA never had real access to Iran's military bases, where the critical work on weaponization occurs. He concluded that the only path to stability in the Middle East is regime change in Tehran.

But the question of Iran's true intentions may hinge on something less visible than satellite imagery or uranium stockpiles: the silence of Iran's new supreme leader, Mojtaba Khamenei. His father, the previous supreme leader, issued a religious decree—a fatwa—in 2019 declaring that producing and stockpiling nuclear weapons was forbidden under Islamic law. This fatwa became central to Iran's diplomatic argument that its nuclear program was peaceful. Yet since Mojtaba Khamenei took power following his father's death, he has not reaffirmed the ban. Tim Bosch, a former senior Dutch intelligence officer and current CEO of the Birdwatcher Group, told Deutsche Welle that this silence is significant. "Those opposed to acquiring nuclear weapons in Tehran are now far weaker," Bosch said. He added that without IAEA inspections, no intelligence agency can honestly claim to know whether Iran has decided to build a bomb. "Those who claim with absolute certainty that they have made their decision are either bluffing or mostly advancing their own political agendas," he said—referring to hardliners in Iran, Israel, and the United States.

The 60-day period for technical talks between Iran and the United States under the Islamabad Memorandum of Understanding, which had extended a ceasefire, expired in mid-August. The IAEA Board of Governors referred Iran to the UN Security Council on September 9 over alleged breaches of its non-proliferation obligations. Damon Golriz, a political analyst at The Hague University of Applied Sciences, argues that the 2026 war—which killed Khamenei and decapitated Iran's military and security establishment—has fundamentally altered Tehran's calculation. The targeting of Iran's leadership raised a question that may now be driving policy: Has the constraint that Khamenei represented on Iran's nuclear ambitions become obsolete? If so, the regime's nuclear doctrine may be undergoing reassessment. What comes next depends on whether diplomacy can still find purchase, or whether the logic of deterrence—and the logic of war—will prevail.