Iran’s declaration that all restrictions under the 2015 nuclear accord, the Joint Comprehensive Plan of Action (JCPOA), are “terminated” marks more than a diplomatic breakdown for it signals the end of an era of external constraints on Tehran’s nuclear programme.
Its foreign ministry stated that the framework established by United Nations Security Council Resolution 2231 has now sunset and that Iran no longer sees itself as bound by the deal’s provisions. For a decade, the JCPOA stood as a rare agreement anchored in mutual verification, limits and sanctions relief.
But Washington’s unilateral exit in 2018 undermined its credibility; European backers hesitated; and Tehran steadily diminished cooperation, culminating this year in the cancellation of a new International Atomic Energy Agency inspection arrangement.
The structure collapsed not in a single blow but by attrition. With the E3’s snap-back sanctions removed the last incentive for compliance, Iran walked away.
Iran’s strategy is far from symbolic. A confidential IAEA briefing indicated that Tehran’s uranium stockpile enriched to 60 percent purity increased by 50 percent in the first half of 2025, reaching approximately 409 kg, uncomfortably close to the roughly 90 percent threshold for weapon-grade material.
At the same time, oil export revenues rose to an estimated $46.7 billion in 2024, with some Iranian figures putting the 2025 number at $67 billion, proof that sanctions no longer dictate Tehran’s margin of manoeuvre.
Moscow and Beijing have also moved quickly to back Tehran’s defiance, co-authoring a joint letter to the UN that asserted the restrictions lapsed with Resolution 2231. From Iran’s vantage, the logic is inescapable: if the West reinstated sanctions contrary to the accord, then monitoring mechanisms no longer held moral or legal authority. The field is open and the rules are gone.
The danger now lies not just in the dismantling of one deal but in the ambiguity it breeds. Israel views an unchecked Iranian programme as an existential threat. Meanwhile, Gulf states that only recently reopened channels to Tehran must now ask whether diplomacy was earnest or simply tactical.
As for Pakistan, the implications, though indirect, are real. Islamabad has long held that non-proliferation must be universal, enforceable and free from double-standards.
A nuclear-ambiguous Iran reshapes the strategic geometry of the Gulf and Indian Ocean alike; raising the value of deterrence and exposing the limits of trust-based agreements. Pakistan may not sit at the centre of this crisis, but it definitely lies within its strategic echo. *