US and Iran sign interim deal to reopen Strait of Hormuz
The United States and Iran have signed an interim memorandum intended to halt a 110-day conflict, reopen the Strait of Hormuz and start a 60-day negotiation window on Iran's nuclear programme, US officials said. Iranian parliamentary speaker Mohammad Bagher Ghalibaf, Tehran's chief negotiator, framed the outcome as proof that talks achieved more than battlefield pressure. The immediate bargain is narrower than a peace settlement: US officials said Iran must restore commercial passage through Hormuz and discuss down-blending highly enriched uranium under International Atomic Energy Agency supervision, while Washington offers oil waivers and conditional sanctions relief. The hard issues remain unresolved, including verification, Iran's missile programme, Hezbollah's role in Lebanon and whether Iran can impose future transit fees. For Belgium and the EU, the deal matters mainly through energy prices, shipping risk, inflation and the EU's stake in nuclear non-proliferation.
Trust & Evidence📚 9 sources· ✓ Editor reviewed· 🧠 AI-checked· Trust status: not yet independently verifiedView evidence & verification Hide
Verification record
- 📚 9 verified sources — Al Jazeera - Ghalibaf says talks delivered more results than war · Associated Press - The interim US-Iran deal leaves the fate of Tehran's nuclear program still to be negotiated · Axios - U.S. and Iran sign deal ahead of schedule · The Guardian - US-Iran deal takeaways: reopening the Strait of Hormuz, waived oil sanctions and Lebanon …
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- 🇧🇪 Belgian impact: Medium
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The Iran Conflict: Nuclear, Regional and Diplomatic
The decades-long confrontation between Iran and its adversaries — the United States, Israel, Saudi Arabia, and proxies across the region — covering the nuclear file, sanctions, the JCPOA collapse, the post-October 2023 escalation, and current diplomatic openings.
About this story
Mohammad Bagher Ghalibaf (Iran's parliamentary speaker and chief negotiator in the 2026 talks) has become Tehran's public face in the interim deal. Donald Trump (US president, returned to office in 2025) signed the memorandum and presented it as an economic de-escalation. JD Vance (US vice-president) is expected to lead the US delegation in follow-up talks. Masoud Pezeshkian (Iran's president, elected in 2024) is the Iranian executive signatory cited in US accounts. The Strait of Hormuz (narrow Gulf passage between Iran and Oman) is a major oil, LNG and fertilizer route. The International Atomic Energy Agency (UN nuclear watchdog based in Vienna) would supervise any uranium down-blending. Hezbollah (Iran-backed Lebanese armed movement and party) is relevant because the memorandum refers to Lebanon. The G7 (forum of major industrial democracies plus the EU) has backed follow-on talks on missiles and regional activity.
How to read this story
The history
The Associated Press account notes that the 2015 Joint Comprehensive Plan of Action took more than 18 months to negotiate and relied on detailed limits on enrichment, centrifuges and heavy water production. Trump withdrew the United States from that pact in 2018. The current memorandum compresses the next nuclear phase into 60 days, while US officials say major implementation questions remain. UN Trade and Development compared the Hormuz disruption with recent global shocks such as COVID-19 and Russia's 2022 invasion of Ukraine, where energy, transport and agricultural-input problems moved quickly into household prices.
The geopolitics
Hormuz is a strategic chokepoint where military pressure, energy dependence and nuclear diplomacy intersect. The memorandum suggests both sides recognised that controlling escalation mattered more than maximal battlefield demands. It also shows the limits of Western leverage: Iran may gain oil waivers and negotiating space while Europe and the G7 push to add missiles and regional proxies to a deal Tehran may resist.
Why now
The immediate trigger is the signing of the interim memorandum after months of conflict and market pressure around the Strait of Hormuz. Ghalibaf's statement matters now because it signals Tehran's public justification for accepting negotiations after sustained military confrontation.
What to watch
Watch whether commercial shipping actually returns through Hormuz within the stated 30-day window, whether follow-up talks in Switzerland produce a verified uranium plan, and whether the G7 can keep missiles and regional armed groups on the agenda without collapsing the negotiations.
International angle
The deal is international by design: it links US-Iran military de-escalation, Gulf shipping, Iran's nuclear programme, Hezbollah-linked tensions in Lebanon and G7 involvement. Belgium enters through the EU layer, because Brussels-based institutions help coordinate sanctions policy, energy-security discussions and non-proliferation diplomacy with the IAEA system.
What this means for you
Belgian readers should not expect instant price normalisation. Fuel, freight and fertilizer costs may ease only if insurers, shipowners and energy traders believe the route is reliably safe. Businesses exposed to transport or energy contracts should watch implementation signals rather than the signing ceremony alone.
What happens next
US officials said delegations led by JD Vance and Mohammad Bagher Ghalibaf are expected to continue talks in Switzerland, with 60 days to turn the memorandum into a final agreement. Negotiators must define uranium down-blending, sanctions sequencing, Hormuz passage rules and Lebanon-related commitments. Either side could still harden its position if implementation stalls or domestic criticism grows.
Potential consequences
If implemented, the memorandum could reduce insurance premiums, ease oil and LNG price pressure and give EU governments space to avoid a wider regional military commitment. If it fails, the Strait of Hormuz could return to restricted traffic, sanctions could tighten again and nuclear diplomacy could become more coercive. A weak final text could also deepen Israeli, Gulf and US congressional resistance, raising the risk of parallel military or sanctions measures.
Opposing perspectives
- US administration
US officials argue that the memorandum buys immediate de-escalation, restores Hormuz traffic and creates a defined 60-day path to address Iran's nuclear programme. Their strongest case is that partial relief is justified if it prevents further shipping disruption, reduces market pressure and gives negotiators a concrete framework.
- Iranian negotiating camp
Ghalibaf's camp presents the deal as evidence that sustained resistance forced Washington to accept talks, oil waivers and a role for Iran in the Strait of Hormuz. Its strongest argument is that diplomacy produced economic openings and recognition of Iranian leverage that military pressure failed to secure.
- US congressional and Iran-hawk constituency
Sceptical lawmakers and Iran-hawk analysts argue that the agreement front-loads sanctions relief while leaving nuclear verification, missiles and proxy forces unresolved. Their strongest case is that a 60-day timetable is too short for a technical nuclear settlement and may allow Iran to rebuild leverage.
- European and G7 governments
G7 leaders support the de-escalation but want follow-on talks on ballistic missiles and Iran-linked regional forces. Their strongest argument is that reopening Hormuz is necessary but insufficient: Europe needs durable shipping security, enforceable nuclear limits and a regional framework that includes Lebanon and Gulf stability.
Timeline
- 2015-07-14·Iran and world powers concluded the JCPOA in Vienna after more than 18 months of negotiations, according to historical accounts.
- 2018-05-08·Trump withdrew the United States from the JCPOA during his first presidency.
- 2026-02-28·The 2026 Iran war began, and subsequent Hormuz disruption became a central global economic risk.
- 2026-03-10·UN Trade and Development warned that Hormuz disruption could transmit energy, fertilizer and transport shocks across global markets.
- 2026-06-17·US officials said Washington and Tehran had signed an interim memorandum and opened a 60-day negotiation window.
- 2026-06-18·Ghalibaf publicly framed the diplomatic outcome as more productive than continued war.
Glossary
- IAEA
- The International Atomic Energy Agency, the UN-linked nuclear watchdog that monitors safeguards and verification in member states including Iran.
- JCPOA
- The 2015 Joint Comprehensive Plan of Action, the Iran nuclear agreement that limited parts of Tehran's programme in exchange for sanctions relief.
- G7
- A forum of major industrial democracies plus the European Union, used for political coordination on security and economic issues.
- Sanctions relief
- The easing or removal of economic restrictions, such as oil-export bans or financial limits, usually tied to diplomatic conditions.
- Down-blending
- A nuclear process that dilutes highly enriched uranium into material less suitable for weapons use.
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This briefing was prepared with AI assistance and reviewed by a Belgium Impulse editor before publication. methodology.