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International Relations May 20, 2026 8 min read Daily brief · #12 of 42

Iran examining U.S. proposal, as Trump says in ‘final stages’ of talks

Iran's Foreign Ministry stated that the Islamic Republic had "received the points of view of the American side" and was "currently examining them," in respon...


What Happened

  • Iran's Foreign Ministry stated that the Islamic Republic had "received the points of view of the American side" and was "currently examining them," in response to US claims that nuclear negotiations were in their "final stages."
  • The ongoing talks are mediated through Oman and represent the latest round of a negotiating process that began in earnest in 2025, with multiple rounds held in Muscat and other locations.
  • Central disputes between the two sides include the US demand that Iran completely halt uranium enrichment, the future of Iran's ballistic missile programme, the timing and scope of sanctions relief, and whether Iran's stockpile of highly enriched uranium would remain on Iranian soil or be transferred to a third country.
  • Iran proposed a three-step framework: temporarily lower enrichment to 3.67% in exchange for access to frozen financial assets and initial sanctions relief — a graduated approach contrasting with the US preference for upfront dismantlement.
  • Diplomats from Egypt, Turkey, and Qatar separately offered Iran a framework: halt enrichment for three years, transfer highly enriched uranium out of the country, and pledge not to initiate ballistic missile use.
  • The context of the negotiations includes the February–April 2026 Iran war and subsequent ceasefire — meaning the talks occur under conditions of post-conflict fragility rather than purely diplomatic manoeuvring.

Static Topic Bridges

Iran's Nuclear Programme and the JCPOA

The Joint Comprehensive Plan of Action (JCPOA), concluded on July 14, 2015, was a multilateral agreement between Iran and the P5+1 (US, Russia, China, UK, France, Germany) plus the EU, aimed at limiting Iran's nuclear programme in exchange for sanctions relief. Under the JCPOA: uranium enrichment was capped at 3.67% purity; the enriched uranium stockpile was limited to 300 kg; only 5,060 first-generation IR-1 centrifuges could operate; and the Fordow facility was repurposed for non-enrichment research. The deal was verified through IAEA Additional Protocol inspections and enhanced monitoring.

  • Weapons-grade uranium enrichment: 90%+. Iran's pre-JCPOA enrichment was 20% (for medical isotope production) and it has since enriched to 60%+ after the JCPOA collapsed.
  • The US unilaterally withdrew from the JCPOA in May 2018 under the "maximum pressure" campaign; Iran began rolling back its commitments in 2019.
  • The IAEA (International Atomic Energy Agency), headquartered in Vienna, is the UN body responsible for nuclear verification; India is a member of the IAEA Board of Governors.
  • Iran is a signatory to the Nuclear Non-Proliferation Treaty (NPT, 1968) as a Non-Nuclear Weapon State (NNWS); it is obligated not to develop nuclear weapons.
  • The 2026 negotiations essentially seek a successor agreement to the JCPOA, but in a significantly changed geopolitical environment following the 2026 conflict.

Connection to this news: Iran's examination of the US proposal is set against the backdrop of the JCPOA's collapse — the current enrichment level of 60%+ far exceeds JCPOA caps, making any new deal require significant Iranian rollback. The Iranian three-step proposal essentially seeks to replicate JCPOA terms with a graduated timeline, while the US demands more upfront concessions.


The NPT Regime and Non-Proliferation Architecture

The Nuclear Non-Proliferation Treaty (NPT), opened for signature in 1968 and entered into force in 1970, is the cornerstone of the global non-proliferation regime. It rests on three pillars: (1) non-proliferation (NNWS commit not to acquire nuclear weapons); (2) disarmament (Nuclear Weapon States commit to eventual disarmament); and (3) peaceful use (all parties may develop civilian nuclear energy). The IAEA administers the safeguards system that verifies compliance. Iran's case represents one of the most complex test cases for the NPT regime — it remains a signatory but has been found in non-compliance with safeguards obligations.

  • NPT has 191 state parties; four states outside the NPT with nuclear weapons: India, Pakistan, Israel (neither confirms nor denies), North Korea (withdrew in 2003).
  • India's position on the NPT: India has not signed the NPT, arguing it is discriminatory as it perpetuates a two-tier international order. India conducted nuclear tests in 1974 (Pokhran-I) and 1998 (Pokhran-II), but maintains a no-first-use policy and a credible minimum deterrence doctrine.
  • The IAEA Board of Governors referred Iran to the UN Security Council in 2006 after finding it in non-compliance with safeguards; the UNSC passed six resolutions imposing sanctions between 2006 and 2010.
  • The Additional Protocol strengthens IAEA verification beyond the basic safeguards agreement, requiring states to declare a broader range of nuclear activities and allowing short-notice inspections.

Connection to this news: The current US-Iran talks are fundamentally about verifying a return to NPT-compliant enrichment levels through IAEA mechanisms. Iran's reluctance to allow full IAEA access — and the US insistence on zero enrichment — reflects the core tension in the NPT regime between civilian nuclear rights and weapons proliferation risk.


Oman as a Diplomatic Intermediary

Oman has historically served as a backchannel between Iran and Western powers, a role rooted in its unique foreign policy — maintaining diplomatic relations with Israel while being a member of the Arab League, and hosting both US and Iranian diplomatic contacts despite regional hostilities. Oman facilitated the secret US-Iran talks in 2012–13 that ultimately produced the JCPOA framework, and has continued this role in subsequent negotiating rounds.

  • Oman is a member of the Gulf Cooperation Council (GCC) but has historically maintained independent foreign policy positions diverging from Saudi Arabia.
  • Oman has no history of hosting US military bases and maintains trade and consular relations with Iran, giving it unique credibility with Tehran.
  • The use of indirect talks (each party meets with the Omani mediator separately) reflects the lack of direct US-Iran diplomatic relations (broken in 1980 after the hostage crisis).
  • India's relation with Oman: India has a close bilateral relationship; the India-Oman Friendship Treaty (1953) is one of India's oldest bilateral treaties. Oman hosts the largest Indian diaspora in the Gulf outside UAE and Saudi Arabia.

Connection to this news: Oman's mediating role demonstrates the structural importance of neutral intermediaries in US-Iran diplomacy. The fact that talks are resuming through this channel signals that both sides retain an interest in diplomatic resolution despite the military confrontation of early 2026.


Iran's Ballistic Missile Programme and Regional Security

Iran's ballistic missile programme is a central element of its deterrence strategy and a major sticking point in nuclear negotiations. Iran maintains one of the largest and most diverse ballistic missile arsenals in the Middle East, including the Shahab series, Sejjil (solid-fuelled), and Fattah hypersonic missiles. The programme is operated by the IRGC Aerospace Force and is explicitly excluded from the JCPOA's scope — which is why the US has insisted any new deal must address missiles.

  • Iran's missile programme has been the subject of UNSC restrictions under Resolution 2231 (which endorsed the JCPOA) — these expired in October 2023.
  • Iran has transferred ballistic missiles and drones to Russia (used in Ukraine) and to Houthi forces in Yemen, demonstrating the programme's strategic reach.
  • The IRGC's designation as a Foreign Terrorist Organization by the US in April 2019 — the first time a state military entity was so designated — reflects the US view of IRGC activities as extending beyond military deterrence to state-sponsored terrorism.
  • Iran's Shahab-3 missile, with a range of ~1,300 km, can reach Israel; the longer-range Sejjil can reach parts of Europe.

Connection to this news: Any final nuclear deal will require addressing the ballistic missile programme — a demand Iran has resisted as it sees missiles as a core sovereignty matter and conventional deterrence asset. This linkage is what makes nuclear negotiations with Iran structurally more complex than simple enrichment negotiations.


Sanctions as a Foreign Policy Tool

Economic sanctions — restrictions on trade, financial transactions, investment, and technology transfer imposed by one state or a group of states against another — have become a primary instrument of coercive diplomacy since the Cold War. The Iran sanctions architecture is among the most comprehensive ever constructed, involving both unilateral US sanctions (under IEEPA and the Iran Sanctions Act) and multilateral UNSC sanctions (now lapsed). The OFAC (Office of Foreign Assets Control) administers US sanctions.

  • Iran's frozen financial assets: estimates range from $6–10 billion (accessible in third countries including Qatar and South Korea) to $120 billion (in US and EU-inaccessible accounts). Actual accessible amounts are disputed.
  • Secondary sanctions — US sanctions on third parties that do business with Iran — have been a major source of tension with India, which historically imported Iranian crude oil.
  • India was granted waivers from US secondary sanctions on Iranian oil imports through 2019, after which it significantly reduced (near-zero) Iranian oil imports to avoid secondary sanctions.
  • UNSC sanctions against Iran (imposed 2006–2010) were suspended under JCPOA; after US withdrawal, UNSC sanctions were partially "snapped back" by the US in 2020 under the snapback mechanism — a legal move contested by other P5+1 members.

Connection to this news: Iran's three-step proposal — enrichment reduction in exchange for access to frozen assets and gradual sanctions relief — mirrors the sequencing debate that plagued JCPOA negotiations. The timing and conditionality of sanctions removal remains the core economic bargain around which any deal must be structured.


Key Facts & Data

  • JCPOA signed: July 14, 2015 (P5+1 + EU + Iran)
  • JCPOA enrichment cap: 3.67% (weapons-grade: 90%+)
  • Iran's current enrichment level (2026): up to 60% (per IAEA reports pre-conflict)
  • US withdrew from JCPOA: May 2018
  • IRGC designated Foreign Terrorist Organization by US: April 2019
  • NPT: entered into force 1970; 191 state parties; India not a signatory
  • IAEA Board of Governors referred Iran to UNSC: 2006
  • UNSC Resolutions on Iran: six resolutions, 2006–2010
  • Oman's role: mediated secret US-Iran talks 2012–13 that led to JCPOA
  • Iran's ballistic missiles: Shahab-3 (~1,300 km range), Sejjil (~2,000 km), Fattah (hypersonic, claimed 1,400 km range)
  • UNSC Resolution 2231 missile restrictions on Iran: expired October 2023
  • India's Iranian oil imports: near-zero from 2019 onwards due to US secondary sanctions
On this page
  1. What Happened
  2. Static Topic Bridges
  3. Iran's Nuclear Programme and the JCPOA
  4. The NPT Regime and Non-Proliferation Architecture
  5. Oman as a Diplomatic Intermediary
  6. Iran's Ballistic Missile Programme and Regional Security
  7. Sanctions as a Foreign Policy Tool
  8. Key Facts & Data
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