
US Navy Enforces Strait of Hormuz Blockade, Intercepts All Iranian-Linked Ships
Key Takeaways
- The U.S. Navy enforces a blockade of Iranian ports in the Strait of Hormuz.
- CENTCOM reports ships were turned back or intercepted while enforcing the blockade.
- More than 20 ships transited the Strait of Hormuz within 24 hours.
US-Iran Naval Blockade
The United States imposed a naval blockade on Iranian ports in the Strait of Hormuz on March 4, 2026.
“What to know about 'ship spoofing' by Iran-linked vessel to breach the US blockade of the Strait of Hormuz At least three U”
CENTCOM announced it would intercept all vessels going to and from Iranian ports while not impeding freedom of navigation for ships from other Persian Gulf ports.
No ship had been able to pass by American forces during the first 48 hours of the blockade.
More than 12 U.S. Navy vessels were deployed east of the strait.
The New York Times reported that no ship linked to Iran had been able to depart the area visibly since the blockade began.
The Times of India noted that at least two US-sanctioned, Iran-linked vessels passed through the Strait of Hormuz into the Persian Gulf.
Enforcement Challenges
Some Iran-linked ships appeared to be using deceptive methods known as spoofing.
The sanctioned crude oil tanker Alicia crossed the strait inbound from the Gulf of Oman into the Persian Gulf.

CBS News documented several Iran-linked ships passing through the strait after the blockade began.
The Times of India described vessels navigating through a narrow passage between Iran's Larak and Qeshm islands.
Shipping traffic plunged to below 10 percent of pre-conflict levels.
Iran's Control and Economic Leverage
Iran maintained control over the Strait of Hormuz and continued to charge transit tolls.
Tolls are estimated at around US$1 per barrel, generating US$600 million per month from oil.
The strait functions as a security guarantee and gives Iran geopolitical leverage.
China buys more than 80 percent of Iran's oil and has criticized the U.S. blockade.
Diplomatic and Regional Reactions
Trump indicated talks with Tehran could resume within days.
Iran's President Masoud Pezeshkian said Tehran would not yield to force.

Russia and China indicated they would remain actively engaged in the crisis.
More than 900 ships were bottled up in the Persian Gulf.
Daily vessel traffic fell to below 10 percent of pre-conflict levels.
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