Tehran: Iran has announced the closure of the Strait of Hormuz, one of the world’s most strategically important maritime routes, following a fresh round of U.S. military strikes on Iranian targets. The move marks a major escalation in the ongoing conflict and has immediately sent shockwaves through global energy markets.
Iran’s joint military command said the waterway would be closed to all vessels and warned that any ship attempting to transit the strait would face military action. The announcement came hours after the United States launched new strikes on multiple Iranian targets, with Washington describing the operations as defensive measures.
The Strait of Hormuz, located between Iran and Oman, serves as a critical gateway for global energy exports. Roughly one fifth of the world’s oil and a significant share of liquefied natural gas shipments normally pass through the narrow channel, making any disruption a matter of international concern.
The latest confrontation follows a rapid deterioration in relations between Tehran and Washington after a fragile ceasefire that had eased tensions earlier this year began to unravel. U.S. officials say the recent strikes were launched after an American military helicopter was brought down near the Strait of Hormuz. Iran, meanwhile, has accused the United States of repeatedly violating understandings reached during previous diplomatic efforts.
Energy markets reacted swiftly to the announcement. Brent crude and U.S. benchmark oil prices jumped by more than dollar 2 per barrel as traders assessed the possibility of prolonged disruptions to global supplies. Analysts warned that any sustained closure could push oil prices significantly higher and increase inflationary pressures worldwide.
The military situation has also broadened beyond the waters of the Gulf. Reports indicate that Iran has launched retaliatory attacks targeting U.S. assets and military facilities in parts of the region, including Bahrain, Kuwait and Jordan, while American forces continue operations against Iranian military infrastructure. Both sides have signalled readiness for further action, raising fears of a wider regional conflict.
Shipping companies, insurers and governments are closely monitoring developments. The Strait of Hormuz has been at the centre of a broader maritime crisis throughout 2026, with previous restrictions, blockades and security incidents already disrupting commercial traffic. The latest announcement is expected to further complicate navigation and energy transportation through the region.
For now, uncertainty remains over how long the closure will last and whether diplomatic channels can prevent a deeper confrontation. What is clear is that the world’s most critical oil chokepoint has once again become the focal point of a rapidly intensifying West Asia conflict, with consequences likely to be felt far beyond the region.
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