Iran’s Islamic Revolutionary Guard Corps Navy has suspended all commercial transit through the Strait of Hormuz until further notice, citing security concerns. The announcement came via Iran’s state broadcaster, and it marks another escalation in a pattern of disruptions that has been building throughout 2026.
The Strait of Hormuz handles roughly one-fifth of all global oil trade.
A pattern of escalation, not an isolated event
This isn’t the first time the IRGC has pulled this lever. Commercial transit through the strait was previously restricted on April 16 and again on June 1 of this year, with the IRGC consistently pointing to US military actions in the region as justification.
The April restrictions came with teeth. Iran seized two container ships that month for allegedly violating transit protocols, and the IRGC issued warnings that non-compliant vessels would be treated as targets.
