If Tehran accepts a near-term freeze of enrichment, the nuclear dossier could stop being the core of its external deterrence and domestic politics, with control of the Strait of Hormuz emerging as an alternative source of leverage. A U.S. outline circulated in May 2026 proposes Tehran hand over an estimated 440 kilograms of uranium enriched to 60 percent, suspend enrichment for at least 12 years and reopen the strait in return for partial sanctions relief and the release of frozen assets, according to U.S. media reporting and regional coverage of the talks.

If Tehran accepts a near-term freeze of enrichment, the nuclear dossier could cease to be the defining element of Tehran's external deterrence and domestic politics, with control of the Strait of Hormuz emerging as an alternative source of leverage.

What the U.S. proposal would require

The United States' 14-point outline, circulated in May 2026, bundles three hard demands. It asks Iran to suspend all uranium enrichment for at least 12 years, to turn over an estimated 440 kilograms of uranium enriched to 60 percent, and to reopen the Strait of Hormuz within 30 days. In exchange Washington would offer partial sanctions relief and the release of frozen assets, according to U.S. media reporting and regional coverage of the talks.

The proposal contains variant options on verification and future Iranian activity. One Western variant discussed in reporting would allow Iran to produce limited low enriched uranium inside a multinational consortium, with enrichment capped near 3 percent under strict safeguards. That arrangement is framed as a way to preserve civilian nuclear capacity while keeping Tehran short of weapons-grade breakout thresholds.

U.S. officials pressed for a deal after five rounds of indirect talks that took place in Muscat and Rome. President Donald Trump and his Middle East envoy, Steve Witkoff, have prioritised reaching terms, and Trump said he expected to learn Tehran's answer "very soon." Secretary of State Marco Rubio said Washington expected a response within hours. Iran's Ministry of Foreign Affairs spokesperson Esmaeil Baghaei told reporters Tehran was still considering the proposal.

Domestic pressure and the shifting balance of leverage

Economic and institutional strains frame Tehran's calculations. U.S. sanctions tightened in 2025, targeting Iran's energy exports, banking channels and shipping.

Mastheads

Those measures reduced foreign exchange and heightened domestic unrest, sharpening a political split between hardliners who view concessions as strategic weakness and pragmatists who see limited compromises as a path to economic relief.

That split shows up in Iran's negotiating posture and in public debate over deterrence. After the outbreak of the U.S.-Israel exchange of strikes, Tehran closed the Strait of Hormuz, prompting a U.S. naval blockade and global energy shocks that surprised even regime loyalists. Some Iranian officials have publicly debated whether control of maritime chokepoints can substitute for nuclear latency as the core of national deterrence. In separate talks Iran reportedly offered to suspend enrichment for several years, a move analysts read as evidence of internal divisions over preserving a nuclear option.

Visibility over Iran's nuclear activities has already narrowed. In mid-2025 Tehran enacted measures that suspended certain forms of cooperation with the International Atomic Energy Agency, curtailing on-the-ground monitoring. Analysts warn that reduced IAEA access increases the risk of intelligence disputes about Tehran's stockpiles and activities, raising the danger of misperception that could prompt renewed hostilities if assessments diverge among capitals.

The bargaining table therefore mixes technical verification, economic relief and regional security tradeoffs. If Tehran accepts a long suspension, the central bargaining chips would shift toward sanctions relief, frozen assets and control over maritime movement. If Tehran declines, U.S. and Israeli officials have signalled that continued pressure and the possibility of strikes remain on the table, keeping the nuclear dossier as an active flashpoint.

How negotiators package verification will matter almost as much as the headline demands. The handover of 440 kilograms of 60 percent enriched uranium is a concrete, measurable step.

So too is any arrangement that limits enrichment to near 3 percent inside a multinational framework. But without independent monitoring the claims on either side will produce competing narratives, and those narratives shape the political calculus inside Tehran just as much as they shape Western responses.

Five rounds of indirect talks in Muscat and Rome suggest a diplomatic path has momentum, but momentum will collide with factional politics and practical implementation problems. Reopening the Strait of Hormuz within 30 days, for instance, is an immediate security demand that would have swift geopolitical and economic effects, since the strait handles about one-fifth of global crude flows. That makes the measure both powerful and politically sensitive inside Iran.

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The immediate next step is Tehran's internal review and formal reply to the May 2026 U.S. proposal. The handover of some 440 kg of 60 percent enriched uranium would be the single, measurable test of whether the nuclear file yields to sanctions relief, verification terms and control of the Strait of Hormuz. Originally reported by AP.

This article was created with AI assistance.