The Islamic Revolutionary Guard Corps Naval Force announced on Wednesday, May 20, that 26 vessels — including oil tankers, container ships, and other commercial ships — transited the Strait of Hormuz over the preceding 24 hours under permits and security coordination provided by the IRGC Navy. The statement is the latest in a pattern of Iranian messaging designed to project operational control over the world’s most consequential maritime chokepoint while allowing limited, managed commercial flow.
The number needs context: before the war began on February 28, 2026, approximately 138 vessels transited the strait every day. Wednesday’s 26 coordinated passages represent roughly 19% of pre-war daily traffic — and every single one of those 26 ships required explicit Iranian authorisation to move.
What “coordination” actually means
The IRGC’s language is precise and deliberate. Passage through the Strait of Hormuz “is carried out with permits and coordination with the IRGC Naval Force” — which in practice means ships must contact Iranian naval authorities, receive routing instructions, pay what have been widely described as toll-like fees, and in many cases follow an alternative channel north of Larak Island rather than the standard International Maritime Organization corridor. The IRGC has published a map showing what it called “alternative routes for transit” that channel traffic through Iran’s territorial waters and past Larak Island, enabling checks by the Iranian navy and port authorities. The official IMO lane has been almost entirely abandoned.
IRGC officials have been explicit: “Since last night, 30 vessels have coordinated and received permission to pass through the strait. Any vessel failing to coordinate would face a firm response.” The IRGC has positioned its fast-attack boat fleet, drone capability, and minelaying operations to make this threat credible — creating a risk environment severe enough that most commercial operators, their insurers, and their charterers have concluded that non-coordinated transit is not worth attempting.
Why Iran is allowing limited traffic
Iran’s Foreign Minister Araghchi has framed the situation as the United States being the obstacle: “As far as we are concerned, the Strait of Hormuz is open for all commercial vessels. But they need to cooperate with our navy forces. It is Americans who have made the blockade.”
The managed flow of 26 coordinated vessels serves Iranian interests on multiple levels simultaneously. It generates toll revenue from a waterway Iran now treats as a taxable asset. It provides economic relief to selected allies — China, Russia, India, Iraq, and Pakistan were designated as permitted-transit nations in late March, and most of the coordinated traffic is believed to serve these countries. It allows Iran to counter the narrative that it has completely closed the strait, providing diplomatic cover in negotiations. And it demonstrates operational control in a way that purely blocking all traffic would not — by showing that ships can pass, but only on Iran’s terms.
The full crisis in context
The strait has been largely blocked since February 28, 2026, when the US and Israel launched an air war against Iran and assassinated Supreme Leader Ali Khamenei. Iran retaliated with missile and drone attacks on Israel, US military bases, and US-allied Gulf states, and the IRGC simultaneously closed the strait, laid sea mines, and began boarding and attacking merchant ships.
A senior IRGC official has since declared that the strait is no longer a narrow maritime corridor but a “vast operational area” extending 500 kilometres from Jask to beyond Qeshm Island — a crescent-shaped zone that Iran claims the right to monitor and control in its entirety.
The US response — Operation Project Freedom on May 4, followed by a pause on May 6 after Trump cited “great progress” in negotiations — has not materially altered the shipping picture. Since May 6, open transits have fallen to near zero vessels per day outside the IRGC-coordinated channel. US CENTCOM has redirected 62 commercial ships and disabled 4 to prevent ships from entering or leaving Iranian ports since its blockade began on April 13.
Just 191 vessels crossed the strait in the entire month of April, against the pre-war norm of approximately 3,000 per month. Traffic is running at roughly 5% of historical levels.
The risk that remains
Wednesday’s IRGC announcement should not be read as a normalisation signal. Iran has fired on ships in the waterway and vowed to keep doing so for non-compliant vessels. Shipping companies and their insurers remain unwilling to take the risk of unsanctioned transit, given that Iran has attacked vessels and seized two container ships even after ceasefire announcements.
The Joint Chiefs Chairman Dan Caine has stated that “since the ceasefire was announced, Iran has fired at commercial vessels nine times and seized two container ships, and attacked US forces more than 10 times — all below the threshold of restarting full hostilities.”
The 26 ships that passed Wednesday did so safely — because they asked permission first. The strait is not open. It is managed, metered, and monetised by a force that three months ago declared it closed to the world.
India’s exposure
India remains the country most directly exposed to a prolonged Hormuz disruption in the region. As the world’s third-largest oil consumer importing approximately 85% of its crude, every barrel that cannot move freely through the strait either costs more, takes longer, or does not arrive at all. The rupee has hit record lows, oil prices are up 50% since the war began, and India has deployed its navy under Operation Sankalp to escort its own flagged vessels — a measure of how seriously New Delhi is treating a crisis that its diplomacy alone cannot resolve.
This article is for informational purposes only.