CS Anthem chemical tanker was second US-flagged vessel to exit Strait of Hormuz
Headlines

CS Anthem chemical tanker was second US-flagged vessel to exit Strait of Hormuz

Published by Global Banking & Finance Review

Posted on May 5, 2026

3 min read

· Last updated: May 5, 2026

Add as preferred source on Google

CS Anthem Among First US-Flagged Vessels Safely Exiting Strait of Hormuz

Safe Passage of US-Flagged Vessels Through the Strait of Hormuz

By Timothy Gardner and Jonathan Saul

CS Anthem and Alliance Fairfax Complete Transit

BOSTON, May 5 (Reuters) - The CS Anthem chemical tanker exited the Strait of Hormuz on Monday, its operator said on Tuesday, becoming the second commercial U.S.-flagged vessel known to do so while protected by the U.S. military.

Maersk said on Monday that the Alliance Fairfax, a U.S.-flagged vehicle carrier operated by its Farrell Lines subsidiary, had exited the Gulf via the strait.  

Operator Statements on Safe Completion

Crowley-Stena Marine Solutions, which operates the CS Anthem, said in a statement: "The Crowley-managed vessel, CS Anthem, has safely completed its transit through the Strait of Hormuz."

Other US-Flagged Ships Remain in the Gulf

Three other U.S.-flagged ships that have been stuck in the region after the U.S. and Israeli war with Iran began on February 28 remain in the Gulf, three sources said. One of those is the products tanker Stena Imperative, which was hit by two unknown projectiles in the port of Bahrain in early March, causing a fire on board. It is now in dry dock in the Gulf, they said.

US Military Support and Security Measures

U.S. forces are helping to restore commercial shipping through the strait, CENTCOM said on X on Monday. CENTCOM said that U.S. Navy guided-missile destroyers are operating in the Gulf under a directive called "Project Freedom."

Security Teams and Incident Reports

NBC News, citing two unidentified U.S. officials, reported the two ships had U.S. military security teams aboard when Iran launched attacks against them during their Strait of Hormuz transits on Monday. Representatives from Maersk and Crowley did not immediately comment on that report. 

Impact on Global Oil and Shipping

Some 20% of the world's oil passed through the strait before its virtual closure by Iran and a blockade of Iranian ports by the U.S.

The CS Anthem and the Alliance Fairfax were among hundreds of ships stranded in the Gulf with the virtual closure of the Strait of Hormuz in early March.

Incidents and Crew Safety

Maersk said the transit of the Alliance Fairfax was completed without incident and that all crew were safe and unharmed. The sources said the CS Anthem had changed the original crew weeks ago and the exit occurred without incident.

(Reporting by Timothy Gardner in Boston and Jonathan Saul in London; Additional reporting by Lisa Baertlein in Los Angeles; Editing by Franklin Paul, Mark Porter, Rod Nickel)

Key Takeaways

  • Operation Project Freedom, launched May 4, 2026, is a U.S. military initiative deploying guided‑missile destroyers, over 100 aircraft, drones and 15,000 personnel to reopen the Strait of Hormuz for commercial shipping under threat‑response conditions (centcom.mil).
  • The CS Anthem’s safe transit marks the second successful U.S.‑flagged merchant vessel passage after the Alliance Fairfax, reflecting limited but pivotal progress in restoring navigation through a corridor that normally handles around 20–25% of global seaborne oil trade (axios.com).
  • Despite the ceasefire holding, hostilities continue: U.S. forces have destroyed six Iranian small boats and faced missile and drone threats, revealing the precarious balance between military action and ensuring freedom of navigation (thedailybeast.com).

References

Frequently Asked Questions

Which US-flagged vessels recently exited the Strait of Hormuz?
The CS Anthem and Alliance Fairfax are the two US-flagged vessels that recently exited the Strait of Hormuz under US military protection.
Why were ships stranded in the Gulf in early 2024?
The virtual closure of the Strait of Hormuz by Iran and a blockade of Iranian ports by the US left many vessels, including US-flagged ones, stranded in early 2024.
What security measures were taken during the transits?
US military security teams and Navy guided-missile destroyers operated in the Gulf under Project Freedom to protect the vessels during their transits.
What happened to the Stena Imperative tanker?
The Stena Imperative tanker was hit by suspicious projectiles in Bahrain port, causing a fire, and is now in dry dock for repairs.
How significant is the Strait of Hormuz for global trade?
The Strait of Hormuz is critical as about 20% of the world’s oil passed through it before the disruptions in early 2024.

Tags

Related Articles

More from Headlines

Explore more articles in the Headlines category