UK-led 40-nation bloc threatens Iran with sanctions over Hormuz
Last updated: 10:37 UTC, April 06 2026 | Started: 2026-04-06 10:35 | 3 update(s) | Avg confidence: 86/100
The story so far: The United States and Israel launched strikes on Iran on February 28, 2026, igniting a direct war. Iran retaliated by attacking commercial shipping and effectively blockading the Strait of Hormuz — a 21-mile-wide chokepoint through which roughly one-fifth of global oil exports normally flow. The UK-led coalition, convened on April 2, is the first major multilateral response, operating without US participation after Trump declared Hormuz security not an American responsibility.
Latest Updates
2026-04-06 10:37 — UK-led 40-nation bloc threatens Iran with sanctions over Hormuz
UK Foreign Secretary Yvette Cooper on April 2 chaired a virtual summit of over 40 countries — including France, Germany, Italy, Canada, Japan, the UAE, and Bahrain — and issued a four-point plan demanding Iran immediately and unconditionally reopen the Strait of Hormuz, with coordinated sanctions as a stated option if it does not, according to the UK Foreign, Commonwealth & Development Office Chair's Statement.
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2026-04-06 10:36 — UK leads 40-nation bloc, threatens Iran sanctions on Hormuz
UK Foreign Secretary Yvette Cooper chaired a virtual summit of more than 40 countries on April 2, producing a signed statement demanding Iran immediately and unconditionally reopen the Strait of Hormuz and pledging to explore coordinated sanctions if it refuses, according to the UK Foreign, Commonwealth & Development Office official chair's statement.
See full breakdown (URL pending)
2026-04-06 10:35 — UK corrals 40 nations, warns Iran of Hormuz sanctions
UK Foreign Secretary Yvette Cooper chaired a virtual summit of ministers and representatives from over 40 countries on April 2, alongside the International Maritime Organisation and the European Union, and the coalition signed a statement demanding Iran's 'immediate and unconditional' reopening of the Strait; options agreed include UN diplomatic pressure, coordinated sanctions, and IMO-led efforts to free trapped ships and sailors, according to the official UK FCDO Chair's Statement.
See full breakdown (URL pending)
What We Know
- UK Foreign Secretary Yvette Cooper chaired a virtual summit of ministers and representatives from over 40 countries on April 2, alongside the International Maritime Organisation and the European Union, and the coalition signed a statement demanding Iran's 'immediate and unconditional' reopening of the Strait; options agreed include UN diplomatic pressure, coordinated sanctions, and IMO-led efforts to free trapped ships and sailors, according to the official UK FCDO Chair's Statement.
- Cooper accused Iran of 'hijacking an international shipping route to hold the global economy hostage,' and the coalition agreed to 'explore co-ordinated economic and political measures, such as sanctions, to bear down on Iran if the Strait remains closed,' the FCDO statement said.
- The United States was not among the 40+ countries attending the summit; US President Donald Trump told European allies to 'get your own oil' and declared that securing the waterway is 'not America's job,' while also renewing threats to pull Washington out of NATO, Al Jazeera reported.
- Iran's attacks on commercial ships have halted nearly all traffic in the strait since joint US-Israeli strikes on Iran began on February 28, 2026; Lloyd's List Intelligence recorded 23 direct attacks on commercial vessels and 11 crew deaths since the conflict started, Al Jazeera reported.
- PM Keir Starmer said military planners from an unspecified number of countries will meet separately to work on how to provide shipping security 'after the fighting has stopped,' but he and French President Emmanuel Macron explicitly ruled out any military operation to force open the strait during active combat, Al Jazeera reported.
- UK Foreign Secretary Yvette Cooper chaired a virtual summit of more than 40 countries on April 2, producing a signed statement demanding Iran immediately and unconditionally reopen the Strait of Hormuz and pledging to explore coordinated sanctions if it refuses, according to the UK Foreign, Commonwealth & Development Office official chair's statement.
- The coalition — which includes France, Germany, Italy, Canada, Japan, the UAE, the Netherlands, Australia and India but excludes the United States — agreed to pursue four tracks: increased diplomatic pressure via the UN, coordinated economic measures including sanctions, working with the International Maritime Organization to free trapped ships, and joint information-sharing with the maritime industry, the FCDO statement said.
- Cooper accused Iran of hijacking 'an international shipping route to hold the global economy hostage,' saying 'unsustainable' spikes in oil and food prices were 'hitting households and businesses in every corner of the world,' the Associated Press reported from the meeting.
- There have been 23 direct attacks on commercial vessels in the Gulf since the US-Israel war on Iran began on February 28, killing 11 crew members, with remaining tanker traffic dominated by sanctions-evading vessels carrying Iranian oil, according to Lloyd's List Intelligence briefing on April 2.
- UK Prime Minister Keir Starmer said military planners from coalition countries will convene separately to plan mine-clearing and shipping security measures for after the fighting ends, but ruled out any attempt to reopen the strait by force while hostilities continue, according to AP and Reuters.
- UK Foreign Secretary Yvette Cooper on April 2 chaired a virtual summit of over 40 countries — including France, Germany, Italy, Canada, Japan, the UAE, and Bahrain — and issued a four-point plan demanding Iran immediately and unconditionally reopen the Strait of Hormuz, with coordinated sanctions as a stated option if it does not, according to the UK Foreign, Commonwealth & Development Office Chair's Statement.
- The coalition's four-point plan commits members to: increase diplomatic pressure through the UN; explore coordinated economic measures including sanctions against Iran; work with the International Maritime Organisation to release ships and sailors trapped in the strait; and share operational information with the shipping industry, the FCDO Chair's Statement confirmed.
- Iranian attacks on commercial vessels have halted nearly all traffic through the strait since the US-Israeli war on Iran began February 28, 2026; Lloyd's List Intelligence recorded 23 direct attacks on commercial vessels and 11 crew deaths in the Gulf since that date, Al Jazeera reported citing the shipping data firm.
- British military planners are scheduled to meet with counterparts from coalition member nations the week of April 7 to develop plans for ensuring shipping security after the war ends, Al Jazeera reported citing UK officials; Prime Minister Keir Starmer stressed that Britain has no intention of entering the war.
- French President Emmanuel Macron said a military operation to force open the strait is 'unrealistic' and would expose ships to Iran's IRGC anti-ship missiles, drones, and ballistic missiles; Macron said reopening the strait requires direct negotiations with Iran following a potential ceasefire, Al Jazeera and the Anchorage Daily News reported.
Still Unclear
- Lloyd's List Intelligence, cited by Al Jazeera: 23 direct attacks on commercial vessels have occurred in the Gulf since the war began, with 11 crew members killed.
United Against Nuclear Iran (UANI): At least 24 commercial vessels have been hit with three near-misses since the start of the conflict.
- International Maritime Organisation, cited by Citrini Research: The IMO confirmed 21 attacks on commercial ships since February 28, resulting in 10 seafarer fatalities, as of April 2.
ITV News, citing Cooper's opening remarks: Cooper stated there have been 'over 25 attacks on vessels in the strait' during the summit.
- (Unverified — single source | Iranian state position not independently corroborated by third-party monitoring) Iran has said that 'non-hostile' ships may transit the Strait of Hormuz, with the waterway only closed to vessels of enemy countries and their allies. [Al Jazeera, citing Iranian government statements]
- (Unverified — single source | figure attributed to Cooper's statement but not independently verified by a shipping data firm) Some 20,000 seafarers are currently trapped in the Strait aboard stranded vessels. [ITV News, citing Cooper's opening remarks]
- AP wire, UK FCDO official chair's statement, April 2, 2026: The coalition agreed to explore coordinated sanctions against Iran and held talks on diplomatic pressure to reopen the strait. No concrete military commitments were made.
Al Jazeera citing Trump's Truth Social post, April 1, 2026: US President Trump took aim at UK and European allies on Truth Social, saying they 'refused to get involved in the decapitation of Iran' and told them to either buy US fuel or 'go get your own oil,' signalling Washington's rejection of the coalition approach.
- Reuters via Al Jazeera, April 2, 2026: French President Macron said launching a military operation to force open the strait is 'unrealistic' and 'would take forever,' and suggested direct talks with Iran as the best route.
AP wire, April 2, 2026: UK PM Starmer said the coalition will marshal military capabilities and use 'a united front of military strength' alongside diplomacy, though only after fighting stops.
- (Unverified — state media only | not independently corroborated) Iran's Islamic Revolutionary Guard Corps has begun operating a 'toll booth' system to collect fees from ships seeking to transit the Strait of Hormuz, and Iran's parliament is seeking legislation to formalise transit tolls. [Iranian media reports cited by Al Jazeera, March 26, 2026]
- (Unverified — anonymous source) EU nations initially refused to join the Hormuz coalition for fear of being dragged into the war, but reversed course as energy prices spiked globally. [Unnamed EU official cited by Reuters via Al Jazeera]
- UK FCDO Chair's Statement, Al Jazeera/AP/Reuters: The Strait of Hormuz is closed to all commercial shipping as a result of Iranian attacks and threats.
Al Jazeera, citing Iran's stated position: Iran says 'non-hostile' ships may transit the strait; only vessels of enemy countries and their allies are blocked.
- (Unverified — single source | not independently corroborated) Trump's conditional ceasefire reprieve, which restricted US strikes on Iran, was originally set to expire on April 6. [United Against Nuclear Iran (UANI)]
- (Unverified — single source | not independently corroborated in fetched wire sources) Oil prices are hovering around $112 per barrel as a result of the Strait of Hormuz disruption. [International Business Times Singapore]
Numbers
| Metric | Value | Source |
|---|
| Countries attending UK-led Hormuz summit | 40+ | UK FCDO Chair's Statement, April 2, 2026 |
| Commercial ship attacks since Feb 28 (Lloyd's List) | 23 attacks | Lloyd's List Intelligence, via Al Jazeera |
| Crew members killed since Feb 28 | 11 | Lloyd's List Intelligence, via Al Jazeera |
| IMO-confirmed attacks since Feb 28 (as of Apr 2) | 21 attacks | International Maritime Organisation, via Citrini Research |
| Countries attending UK-chaired Hormuz virtual summit | 40+ | UK FCDO chair's statement, April 2, 2026 |
| Commercial vessel attacks in Persian Gulf since Feb 28 | 23 direct attacks | Lloyd's List Intelligence, April 2, 2026 |
| Crew members killed in Gulf attacks since Feb 28 | 11 | Lloyd's List Intelligence via Al Jazeera |
| Seafarers trapped on vessels unable to transit the strait | ~20,000 seafarers on ~2,000 ships | AP, citing UK government, April 2, 2026 |
| Global oil price level | Above $100 per barrel (~40% rise from pre-war level) | Al Jazeera, April 2, 2026 |
| Countries in UK-led coalition | 40+ | UK FCDO Chair's Statement |
| Iranian attacks on commercial vessels since Feb 28 | 23 attacks | Lloyd's List Intelligence via Al Jazeera |
| Oil volume transiting Hormuz (pre-closure, annual) (cumulative) | ~15 million barrels/day oil + ~80 million tonnes LNG/year | Energy Aspects, via CNBC |
| Duration of Hormuz disruption (cumulative) | 33 days (Feb 28 – Apr 2, 2026) | Al Jazeera / FCDO statement |
| Duration of US-Israel war on Iran (war began) (cumulative) | February 28, 2026 — ongoing (approx. 33 days) | AP / Al Jazeera |
| Proportion of global oil and LNG normally transiting Hormuz (cumulative) | ~20% in peacetime | Al Jazeera, April 2, 2026 |
| Commercial vessels attacked or involved in Gulf incidents since March 1 (cumulative) | 25 vessels including 11 tankers | UKMTO cited by Asharq Al-Awsat |
| Duration of Strait of Hormuz blockade (as of April 6) (cumulative) | ~37 days (since Feb 28, 2026) | Al Jazeera, FCDO |
| Total attacks on commercial vessels in Gulf since war began (cumulative) | 23 | Lloyd's List Intelligence via Al Jazeera |
| Total crew deaths in Gulf attacks since war began (cumulative) | 11 | Lloyd's List Intelligence via Al Jazeera |
Frequently Asked Questions
Why is the UK leading this coalition instead of the United States?
US President Donald Trump told European allies to 'get your own oil' and declared securing the Strait of Hormuz 'not America's job,' leaving the UK to assemble the 40-nation group. The coalition is also, in part, an attempt to show the Trump administration that Europe is stepping up for its own security as Trump threatens to leave NATO, Al Jazeera reported.
Will the coalition use military force to reopen the Strait of Hormuz?
No country in the coalition currently supports a military operation to force open the strait. French President Macron called such an option 'unrealistic' due to Iran's IRGC coastal threats and ballistic missiles. PM Starmer has been 'very explicit' about pursuing non-military solutions, though military planners are meeting separately to plan post-conflict shipping security, Al Jazeera reported.
What specific actions did the coalition agree to take against Iran?
The coalition agreed to four tracks: increased diplomatic pressure through the UN; coordinated economic measures including possible sanctions if the strait remains closed; working with the IMO to free thousands of trapped ships and sailors; and joint arrangements to support market and operational confidence for shipping operators, according to the UK FCDO Chair's Statement.
Is the UK going to use military force to reopen the Strait of Hormuz?
No. UK PM Keir Starmer explicitly ruled out military action while fighting continues, according to AP. Military planners from coalition countries will meet to plan post-ceasefire mine-clearing and shipping security, but no country at the April 2 summit expressed willingness to use force against Iran while the war is active.
Why is the United States not part of the UK-led Hormuz coalition?
President Trump declined to participate and publicly told European allies to secure the strait themselves, stating 'go get your own oil.' He said reopening the waterway is not America's responsibility, per AP. Trump separately threatened to pull the US out of NATO and disparaged allies for not supporting the war on Iran.
What sanctions are being threatened against Iran over the Hormuz blockade?
The April 2 coalition statement pledged to 'explore co-ordinated economic and political measures, such as sanctions,' but no specific measures were agreed. The UK FCDO said follow-up expert meetings will work out details. No sanctions have been imposed yet; Thursday's summit was a first coordinating step, per the official chair's statement.
What sanctions could the coalition impose on Iran over the Strait of Hormuz?
The April 2 coalition statement listed 'coordinated economic and political measures, such as sanctions' as a second-stage option if Iran keeps the strait closed. No specific sanctions package or timeline was announced; the coalition agreed to hold working-level expert meetings to determine details.
Sources
