US President Donald Trump has declared that the United States will reinstate a naval blockade of Iranian ports and introduce a 20% charge on all cargo traversing the Strait of Hormuz. The announcement, made via social media, asserts that this measure will prevent Iranian vessels or their customers from utilising the vital oil shipping route, while guaranteeing "fair and open use of the Strait" for all other nations. The blockade is set to commence from 20:00 GMT on Tuesday, 14 July 2026.
This escalation follows a series of military exchanges between the US and Iran. Washington confirmed it conducted strikes against military targets within Iran, including air defence systems and missile sites. Tehran retaliated with strikes on US military bases in Kuwait, Jordan, and Bahrain, as well as radar installations in Oman. President Trump stated that the US would assume the role of "THE GUARDIAN OF THE HORMUZ STRAIT" and would be reimbursed for the costs of ensuring safety and security in the region through the imposed toll.
Iran's Foreign Minister, Abbas Araghchi, responded to President Trump's declaration on social media, acknowledging that whoever provides secure passage through the Strait "should be compensated for this service." However, Araghchi disputed the 20% toll, suggesting it was "too much" but adding, "We will be fair." He reiterated Iran's historical role as the "GUARDIAN of the Strait" and affirmed its intention to remain so. The International Maritime Organization (IMO), the UN agency overseeing global shipping, has voiced strong opposition to the charging of fees for passage through international straits, stating there is no legal basis for such mandatory tolls.
The practical implications of President Trump's latest announcement remain largely undefined. International law permits countries to control territorial seas up to 12 nautical miles from their coastlines. At its narrowest point, the Strait of Hormuz, along with its crucial shipping lanes, falls entirely within the territorial waters of Iran and Oman. The strait is a significant global chokepoint, through which approximately 25% of the world's oil and 20% of global liquefied natural gas shipments previously passed before Iran temporarily closed it following US and Israeli strikes earlier in the year.
The UK government is likely to be closely monitoring developments. British nationals travelling in the region are advised to consult the Foreign, Commonwealth & Development Office (FCDO) for the latest travel guidance, which could be updated in response to heightened tensions. Any disruption to shipping through the Strait of Hormuz has the potential to impact global energy markets, with consequences for fuel prices and broader economic stability, including in the UK.