The Strait of Hormuz, a narrow waterway between the Persian Gulf and the Gulf of Oman, has become a flashpoint once again. In late June 2026, the US and Iran traded military strikes, each accusing the other of violating a ceasefire agreement signed just two weeks earlier. President Donald Trump warned on Truth Social that if Iran continued to break the deal, the US would be forced to “militarily complete the job” and that “the Islamic Republic of Iran will no longer exist”. The escalation threatens to reignite a four-month-old war that has already sent global oil prices soaring and disrupted one of the world's most important energy shipping routes.
The immediate trigger was a drone attack on a Panama-flagged oil tanker, MT Kiku, in the Strait of Hormuz on 27 June 2026. The US Central Command (Centcom) said Iran launched a one-way attack drone that hit the vessel, which was carrying more than two million barrels of crude oil. In response, US fighter jets struck 10 Iranian military targets at multiple locations in and near the strait, including surveillance infrastructure, communication systems, air defence sites, drone storage facilities and minelayer capabilities. Iran’s Islamic Revolutionary Guard Corps (IRGC) retaliated by launching ballistic missiles and drones at eight US military sites in Kuwait and Bahrain – specifically the Ali al-Salem base in Kuwait and the Fifth Naval Fleet in Port Salman, Bahrain. Both Kuwait and Bahrain denounced the Iranian attacks, though a US official told Reuters there were no reported US casualties or major damage to US facilities in the Middle East.
“The US and Iran exchange strikes in the Strait of Hormuz, threatening a fragile ceasefire.”
This exchange is the latest chapter in a conflict that began on 28 February 2026, when the US and Israel started military operations against Iran. The war has caused thousands of civilian deaths and sent oil prices skyrocketing. Earlier in June, the two nations signed a 14-point interim agreement – a memorandum of understanding (MOU) brokered by Pakistan – aimed at halting hostilities and reopening the Strait of Hormuz to commercial shipping. The text said both sides and their allies were “not to initiate any war or any military operation against each other and to refrain from the threat or use of force against each other”. However, the strait remained a flashpoint. Iran had largely cut off the waterway for most of the conflict and, under the MOU, claimed arrangements for controlling passage and navigation. Tehran warned that ships trying to navigate via a route designated by the UN’s International Maritime Organization would be “unacceptable and completely dangerous”, insisting vessels coordinate with Iran.
For UK readers, the stability of the Strait of Hormuz matters directly. Around a fifth of the world’s oil passes through the strait, and any disruption can push up petrol prices at the pump and increase the cost of heating homes. The UK imports significant amounts of oil and gas from the region, and British shipping companies also operate in the Gulf. The renewed fighting has already kept normal shipping from fully resuming, and further escalation could lead to higher inflation and economic uncertainty. Moreover, the UK is a close ally of the US, and British forces have been involved in previous Gulf coalitions. While the sources do not mention direct UK involvement in these strikes, any wider conflict could draw in British assets or require diplomatic engagement.
Q: Why is the Strait of Hormuz so important? The Strait of Hormuz is a narrow waterway connecting the Persian Gulf to the Gulf of Oman. It is the world’s most important energy shipping route, with about 20% of global oil supply passing through it. Any disruption can spike oil prices and affect economies worldwide, including the UK.
Q: What is the current ceasefire agreement between the US and Iran? The US and Iran signed a 14-point interim agreement earlier in June 2026, brokered by Pakistan. It states that both sides and their allies must not initiate war or military operations against each other and must refrain from the threat or use of force. The deal was meant to halt a four-month-old war and reopen the Strait of Hormuz to shipping, but both sides have accused each other of violating it.
Q: What did Donald Trump say about Iran in late June 2026? President Trump posted on Truth Social on 27 June 2026, warning that if Iran continued to violate the ceasefire, the US would be forced to “militarily complete the job”. He added: “If that happens, the Islamic Republic of Iran will no longer exist!”
What happens next is uncertain. Both the US and Iran have vowed further retaliation if the other strikes again. The IRGC warned that any potential enemy aggression would have a “crushing response”, while Trump threatened to escalate further. The ceasefire is fragile, and international efforts to restart talks face an uphill battle. The UK and other Western nations will be watching closely, hoping to avoid a full-blown conflict that could devastate global energy markets.