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International Relations April 24, 2026 4 min read Daily brief · #37 of 63

Trump says U.S. in no rush but 'clock is ticking' for Iran

The United States indicated it was in no hurry to resolve its military standoff with Iran, while simultaneously warning that "the clock is ticking" for Tehra...


What Happened

  • The United States indicated it was in no hurry to resolve its military standoff with Iran, while simultaneously warning that "the clock is ticking" for Tehran to accept nuclear deal terms.
  • The US administration ruled out the use of nuclear weapons against Iran but reiterated threats of large-scale conventional strikes — including targeting power plants, bridges, and energy infrastructure — if Iran does not agree to a deal.
  • Military strikes on Yemen were separately carried out in the context of the broader regional escalation, with the Houthi movement cited as an Iran-backed force.
  • The Strait of Hormuz remains severely disrupted, with oil traffic reduced to a trickle since the conflict escalated in February 2026.
  • Iran has been under pressure to permanently foreclose a nuclear weapons pathway, while also facing demands to reopen the Strait of Hormuz to international shipping.

Static Topic Bridges

The JCPOA and the Architecture of Nuclear Non-Proliferation

The Joint Comprehensive Plan of Action (JCPOA), concluded in Vienna on 14 July 2015, was a landmark multilateral agreement between Iran and the P5+1 (the five UN Security Council permanent members — China, France, Russia, the UK, and the US — plus Germany) along with the European Union. The deal placed strict limits on Iran's uranium enrichment, centrifuge numbers, and stockpile levels in exchange for sanctions relief, with the International Atomic Energy Agency (IAEA) serving as the verification authority. The US unilaterally withdrew from the JCPOA in May 2018, reimposing sanctions; Iran subsequently began exceeding JCPOA limits progressively from 2019 onward.

  • JCPOA required Iran to reduce its enriched uranium stockpile by 97%, from ~10,000 kg to 300 kg, and cap enrichment at 3.67%.
  • Iran agreed to implement the IAEA Additional Protocol — a more intrusive inspection regime.
  • The Fordo underground enrichment facility was to be converted to a research centre.
  • "Sunset clauses" meant enrichment restrictions would expire after 15 years from 2015.
  • The US withdrawal in 2018 was followed by Iran enriching uranium to levels (up to 60%, and later 90%) far exceeding JCPOA limits.

Connection to this news: The current standoff is the downstream consequence of the JCPOA's collapse — Iran's nuclear programme has advanced significantly since 2019, and the new US-Iran negotiations represent an attempt to achieve even stricter and more permanent restrictions than the original deal.

The Nuclear Non-Proliferation Treaty (NPT) Framework

The Treaty on the Non-Proliferation of Nuclear Weapons (NPT), which entered into force in 1970, is the cornerstone of the international nuclear order. It distinguishes between Nuclear Weapons States (NWS — the five P5 nations) and Non-Nuclear Weapons States (NNWS), which commit not to acquire nuclear weapons in exchange for peaceful nuclear cooperation and disarmament commitments by NWS. Iran is an NPT signatory (NNWS), meaning its nuclear programme is subject to IAEA safeguards and it is legally prohibited from developing nuclear weapons.

  • NPT has 191 states parties — the most widely adhered-to arms control treaty globally.
  • India, Pakistan, and Israel are not NPT signatories; North Korea withdrew in 2003.
  • IAEA safeguards are the primary verification mechanism under the NPT for NNWS.
  • The NPT recognises the "inalienable right" of states to peaceful nuclear energy (Article IV).
  • Article VI of the NPT commits NWS to work toward nuclear disarmament — a long-contested provision.

Connection to this news: Any military strike on Iranian nuclear facilities would be unprecedented in the context of NPT enforcement and would set a significant precedent for non-proliferation norms, raising the stakes of the US-Iran negotiating outcome well beyond bilateral relations.

Energy Security and the Strait of Hormuz

The Strait of Hormuz — a narrow waterway between Iran and Oman — is the world's most important oil transit chokepoint. According to the US Energy Information Administration (EIA), approximately 20 million barrels per day (b/d) transited through the strait in 2024, representing around 20% of global petroleum liquids consumption. Nearly 34% of global crude oil trade passes through this single passage, with the bulk of exports destined for Asian economies.

  • The strait is approximately 33 km wide at its narrowest navigable point.
  • Saudi Arabia and the UAE have some pipeline alternatives (Petroline and ADCO pipelines), but capacity is insufficient to replace Hormuz volumes.
  • About 93% of Qatar's LNG exports and 96% of UAE's LNG exports transit the Strait.
  • A disruption to Hormuz shipping directly impacts India's energy security — India imports a substantial share of its crude oil from Gulf producers.
  • UNCTAD estimates that a prolonged Hormuz closure could reduce global trade volumes and trigger food and commodity price spikes beyond energy.

Connection to this news: The ongoing restriction on Hormuz shipping due to the Iran conflict is a live energy security crisis with direct implications for oil-importing Asian economies, including India.

Key Facts & Data

  • JCPOA was signed on 14 July 2015 in Vienna by Iran and the P5+1 + EU.
  • US withdrew from JCPOA in May 2018 under the previous administration; re-engagement attempts under the subsequent administration failed to restore the deal.
  • NPT entered into force on 5 March 1970; has 191 states parties.
  • Strait of Hormuz handles approximately 20% of global oil consumption daily (EIA data, 2024).
  • Iran's uranium enrichment reportedly reached approximately 60% purity post-JCPOA collapse — weapons-grade requires ~90%.
  • Houthi movement controls significant territory in Yemen and has been designated by the US as a foreign terrorist organisation.
  • Yemen conflict began in 2015 when a Saudi-led coalition intervened; the Houthis are backed by Iran.
On this page
  1. What Happened
  2. Static Topic Bridges
  3. The JCPOA and the Architecture of Nuclear Non-Proliferation
  4. The Nuclear Non-Proliferation Treaty (NPT) Framework
  5. Energy Security and the Strait of Hormuz
  6. Key Facts & Data
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