Iran has declared the Strait of Hormuz closed and warned that any ships attempting to pass through the strategic waterway will face “harsh measures,” marking a sharp escalation in tensions with the United States and its allies.
The announcement came from Iran’s Islamic Revolutionary Guard Corps, which said transit is no longer permitted, particularly for vessels linked to what it described as Israeli-American interests. The move immediately disrupted maritime traffic, with at least three container ships of mixed nationalities reportedly forced to turn back after receiving warnings.
The Strait of Hormuz is one of the world’s most critical energy corridors, handling roughly a fifth of global oil and gas shipments. Any disruption in the narrow passage has immediate implications for global markets, shipping costs, and energy security.
The closure follows days of escalating hostilities in the region, with the waterway already operating under heavy tension. Analysts warn that even partial enforcement of Iran’s threat could trigger a broader economic shock, particularly if tanker routes remain blocked.
At the same time, military pressure is building. Donald Trump is considering deploying an additional 10,000 troops to the Middle East, according to reports, with forces likely positioned within striking range of Iran and key infrastructure such as Kharg Island, a major oil export hub.
Despite the rising tensions, diplomatic channels appear to remain open. Annalena Baerbock said indirect talks between the US and Iran have taken place, with representatives expected to meet soon in Pakistan in an attempt to de-escalate the situation.
Trump has also indicated he may extend a deadline for Iran to reopen the Strait of Hormuz, warning that failure to comply could lead to strikes on Iranian energy facilities. Tehran, however, has already rejected a proposed US framework to end the conflict, describing it as unfair.
The situation now places global trade and energy supply at the center of a rapidly evolving geopolitical crisis, with the risk of wider confrontation growing as both military and economic pressure intensify.