Iran shut down the Strait of Hormuz, one of the world’s most vital oil transit routes, less than a day after US President Donald Trump announced a two-week ceasefire with Tehran. The decision came amid escalating tensions, with Iran accusing Israel of violating the ceasefire through large-scale airstrikes on Hezbollah targets in Lebanon that reportedly caused significant casualties. In response, Iranian authorities declared that tanker movement through the strait would be brought to a complete halt.
The United States reacted swiftly, urging Iran to reopen the waterway immediately due to its critical importance for global energy supply. Before the closure, a limited number of vessels had been allowed to pass, but Iran quickly reversed its position. Tehran justified its move by arguing that the ceasefire must apply across all fronts, including Israeli military actions in Lebanon, which Israel maintains are outside the scope of the agreement.
Iranian officials emphasised that continued Israeli strikes, particularly those targeting Hezbollah, undermined the credibility of the ceasefire. They argued that the selective application of the truce was unacceptable and that halting maritime traffic was a necessary response to what they described as ongoing aggression. Statements from Iranian leadership stressed solidarity with Lebanon and insisted that a ceasefire must be universal rather than limited to specific parties.
Despite the hardline stance, there were indications that Iran might ease restrictions on the strait in the coming days, particularly ahead of planned diplomatic talks. However, even if reopened, transit is expected to remain tightly controlled, with vessels likely requiring prior approval from Iranian authorities.
The Strait of Hormuz remains a crucial global chokepoint, handling nearly one-fifth of the world’s oil and liquefied natural gas supplies. Any disruption to traffic through this narrow passage has immediate and far-reaching consequences for global markets and energy security.
The situation intensified further as Israel carried out one of its largest military operations in Lebanon, targeting Hezbollah infrastructure across multiple regions, including Beirut and the Bekaa Valley. The strikes resulted in heavy casualties and widespread destruction, with Lebanese authorities reporting hundreds of deaths and injuries. Israel maintained that its operations in Lebanon were separate from the ceasefire arrangement with Iran, a position that has been strongly contested by Tehran.
Hezbollah condemned the strikes and asserted its right to retaliate, while Iran’s Islamic Revolutionary Guard Corps warned of strong responses if attacks continued. Lebanese leadership also called for inclusion in any broader ceasefire framework to prevent further escalation.
With conflicting interpretations of the ceasefire, ongoing military operations, and strategic disruptions such as the closure of the Strait of Hormuz, the situation remains highly unstable. The developments highlight the challenges of enforcing a limited truce in a complex regional conflict involving multiple actors and overlapping fronts.
