23,000 Sailors From 87 Countries Are Trapped In The Persian Gulf. The US Launched A Naval Operation To Free Them, Then Paused It One Day Later. Here Is What Happened.
Up to 2,000 vessels are stranded behind the closed Strait of Hormuz. The US called them sitting ducks. Then a ceasefire deal changed everything.
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Right now, in the waters of the Persian Gulf, roughly 23,000 sailors are trapped on ships that cannot get home.
They are not combatants. They crew oil tankers, container ships, bulk carriers, and gas carriers flying the flags of 87 different countries, almost none of which have anything to do with the conflict that closed the water around them. The Strait of Hormuz, the single most important oil chokepoint on earth, has been effectively shut since late February, and the vessels that were inside the Gulf when it closed are still there.
The International Maritime Organization estimates that up to 20,000 seafarers are stranded aboard roughly 2,000 vessels in the Gulf, and that many are running critically low on food, fuel, and water. On May 6, the Chairman of the US Joint Chiefs of Staff, General Dan Caine, put the figure at 22,500 mariners trapped on more than 1,550 commercial vessels. On May 4, the United States launched a military operation to get them out. One day later, it paused.
As of today, a deal to reopen the strait is, in the words of Vice President JD Vance, "very close" but "not there yet," even as fresh fighting flared this week. Here is what happened, and why the next few days may decide whether these ships sail free or stay trapped, sourced entirely from CNBC, The Hill, Al Jazeera, The National, the IMO, CENTCOM, and named reporting.
📋 In this issue:
🛢️ The Story
📊 By The Numbers
🔍 Why It Matters
👀 What to Watch
🚨 Gosships Signal
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📌 Gosships Data Card
→ Sailors Stranded In The Persian Gulf: Approximately 23,000 Per US State Department Via CNBC
→ Countries Whose Vessels Are Affected: 87 Per US State Department Via CNBC
→ Vessels Stranded Near The Strait: Roughly 2,000 Per IMO, With 22,500 Mariners On 1,550+ Vessels Per General Dan Caine, US Joint Chiefs, May 6
→ Recorded Attacks On Vessels Since The Conflict Began: At Least 19 Killing 10 Per IMO, Rising To 23 Attacks And 11 Crew Killed Per Lloyd’s List Intelligence
→ Operation Launch Date: May 4, 2026 Per CENTCOM Via The National
→ Operation Pause: May 5, 2026, One Day Later, Citing Progress Toward An Iran Agreement Per Trump Via CNBC
🛢️ The Story
The Strait of Hormuz is a stretch of water about 90 miles long and, at its narrowest, around 21 miles wide, between Iran and Oman. Roughly one fifth of the world’s oil passes through it. When it closes, the global energy market feels it within hours.
It closed in late February 2026, after the US-Israeli strikes on Iran and Iran’s response. Maritime traffic collapsed. Insurers withdrew cover. Major carriers suspended transits. And the ships that were already inside the Gulf, loaded or empty, found themselves on the wrong side of a chokepoint that had become a shooting gallery.
The Human Toll.
The International Maritime Organization, the United Nations body that governs global shipping, put hard numbers on the crisis. Up to 20,000 seafarers are stranded aboard roughly 2,000 vessels in the Gulf, according to the IMO as reported by Al Jazeera. On May 6, General Dan Caine, Chairman of the US Joint Chiefs of Staff, gave a more recent count of 22,500 mariners trapped on more than 1,550 commercial vessels. The attack toll has climbed through the crisis. The IMO recorded at least 19 attacks killing 10 seafarers as of early May, while Lloyd’s List Intelligence counted 23 direct attacks on commercial vessels and 11 crew members killed since the war began on February 28. Damien Chevallier, director of the IMO’s Maritime Safety Division, said there is no precedent for the stranding of so many seafarers in the modern age.
These are not statistics to the men and women aboard. They are crews who signed on for routine voyages and are now sitting inside a war zone, watching their food and fresh water dwindle, unable to leave.
The Operation.
On Sunday, May 3, President Donald Trump used his Truth Social account to announce that the United States would act. He wrote that countries from all over the world, almost none of them involved in the Middle Eastern conflict, had asked Washington for help freeing their ships, describing the vessels as neutral and innocent bystanders.
The operation, named Project Freedom, launched on May 4. According to CENTCOM as reported by The National, the Pentagon committed destroyers, more than 100 aircraft, drones, and roughly 15,000 personnel to secure the shipping lanes. The stated goal was narrow. According to CNBC, Project Freedom was not designed to reopen the strait for normal traffic. It was designed to give already-stranded ships a one-way escorted exit.
Secretary of State Marco Rubio framed it in stark terms at the White House. He said the goal was to rescue sailors who had been left for dead by the Iranian regime, and that the stranded crews were sitting ducks, isolated and starving. According to CNBC, Rubio said nations from around the world, the overwhelming majority not engaged in any hostilities, were now at risk not just of losing cargo but the lives of their citizens.
The Reversal.
Then, on May 5, one day after the operation began, Trump paused it. In a Truth Social post reported by CNBC, he said the decision was based in part on the fact that great progress had been made toward a complete and final agreement with Iran, and that Project Freedom would be paused for a short period to see whether the agreement could be finalized and signed.
The stated reason is not the only account. According to two US officials cited by NBC News, the pause followed Saudi Arabia suspending US access to its airspace and the Prince Sultan Airbase for the operation, after Riyadh was caught off guard by the announcement. The New York Times similarly reported it saw no evidence of an emerging deal at the time of the pause. Defense Secretary Pete Hegseth, for his part, described the operation as defensive in nature, focused in scope, and temporary in duration. The competing explanations, a diplomatic breakthrough versus an allied airspace denial, have not been reconciled in public.
Stock futures rose on the news. The pause represented a sharp about-face from an administration that, hours earlier, had described the operation as a matter of life and death for thousands of civilian sailors. As of May 6, according to a compilation of the operation’s events, 26 South Korean ships remained stranded in the strait, with Seoul reviewing whether to join the effort to protect its own vessels.
The operation was not without incident even in its brief active window. On May 4, the HMM Namu, a Panamanian-flagged cargo ship owned by the Korean carrier HMM, was struck by an explosion and caught fire while anchored off the United Arab Emirates. On May 5, about four hours before Trump announced the pause, a vessel belonging to the French container group CMA CGM, the San Antonio, was attacked while attempting to transit the strait, injuring crew who were evacuated and treated, according to CMA CGM. At the same time, a Danish shipping company confirmed that a vessel belonging to one of its subsidiaries crossed the strait under US military escort, one of the few documented successful transits during the brief window the operation was active. The mix of a successful escorted crossing and an attacked container ship in the same 48 hours captured the knife-edge nature of the entire effort.
For the complete rate forecast, fleet supply analysis, and stranded-tonnage modeling for the post-crisis tanker market, see our Global Tanker Market Outlook.
📊 By The Numbers
→ US Personnel Assigned To The Operation: Approximately 15,000 Per CENTCOM Via The National
→ Aircraft Deployed: More Than 100, Plus Destroyers And Drones Per CENTCOM Via The National
→ Share Of Global Oil Transiting Hormuz: Approximately 20% Per US Energy Information Administration
→ US Gas Price Move: Up An Average Of 11 Cents In A Single Day After Transit Dropped Per AAA Via Yahoo News
→ Commercial Transit Through The Strait: Near 4% Of Pre-Crisis Volume As Of May 24 Per IMF PortWatch Via Straits.live
→ South Korean Ships Still Stranded As Of May 6: 26 Per Operation Project Freedom Compilation
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The economics of a 2,000-ship traffic jam. Why the pause may matter more than the operation. What the ceasefire means for tanker rates, oil prices, and the crews still waiting. And the one signal that tells you whether these ships sail free or stay trapped. Below.
🔍 Why It Matters
A stranded fleet of 2,000 vessels is not just a humanitarian crisis. It is a structural distortion of the global tanker market that will take months to unwind even after the strait reopens.
