US Marines Hormuz Missile Attack: Pentagon Never Disclosed the September 14 Strike on 8 Marines

Eight US Marines were injured on September 14 when an Iranian anti-ship cruise missile struck the maritime vessel they were operating on in the Strait of Hormuz — and the American public only learned about it two weeks later. The us marines hormuz missile attack was first publicly disclosed by NBC News on Sunday, September 27 (US time), which cited three US officials. The Pentagon had never publicly reported an attack against US forces in the region on September 14, and a US Central Command spokesperson declined to comment on the report when NBC News asked.

The Attack: What Happened on September 14

According to NBC’s reporting, described by TRT World, the missile struck a maritime vessel carrying the Marines as they operated in the strait. Seven of the injured were enlisted personnel and the eighth was an officer, all serving as part of a battalion landing team at the time of the strike.

The injuries, thankfully, were not serious. Arab Times Online reports the Marines suffered smoke inhalation and concussion-like symptoms, including headaches, that raised the possibility of traumatic brain injuries. All eight returned to duty shortly after the attack.

Crucially, the Marines were not aboard a US Navy ship. Officials refused to identify the vessel’s type, flag, or class, describing it only as a “maritime vessel,” and gave no details about its mission or its precise location within the Strait of Hormuz.

What We Know — And What Remains Unconfirmed

The Iranian attribution for the missile comes from three unnamed US officials speaking to NBC News — it is not a confirmed Pentagon announcement. A US Central Command spokesperson declined to comment, and the Defense Department referred questions to CENTCOM. Until the military confirms the details on the record, key questions remain open: what kind of vessel the Marines were operating on, what its mission was, and exactly where in the strait the strike occurred. Officials declined to answer all of those questions, per Arab Times Online’s report.

The Pentagon’s Casualty Problem

The disclosure is only half the story. The bigger story may be how the injuries were counted — or rather, how long they went uncounted. The injuries were entered into the Pentagon’s Defense Casualty Analysis System (DCAS) only about 10 days after the attack. One US official told NBC that reporting can be delayed because some symptoms do not emerge immediately and the database does not update in real time. DCAS also does not specify the circumstances — where or when — of individual injuries.

The casualty numbers themselves tell a story of shifting accounting. According to Hindustan Times, DCAS showed 861 US service members injured in the war with Iran as of Wednesday, September 23, per NBC’s review of the database. Separately, the Washington Post reported on Friday, September 25, that the Pentagon had added 37 wounded — 29 Navy sailors and 8 Marines — to the public database, bringing the listed wounded total to 861. More than half of those 861 were categorized under “Overseas Operations” after the collapse of the July ceasefire, with earlier casualties recorded under “Operation Epic Fury.”

This fits a pattern. The US-Israel war with Iran began in February 2026, and unlike some previous overseas wars, casualty information has not been consistently disclosed. The Pentagon recently reduced its reported number of deaths from the summer after changing how some fatalities were classified — though no specific death figures were given in the reporting.

Wider Context: A Strait Under Siege

The strike happened against the backdrop of a US military naval blockade on vessels entering and leaving Iranian ports through the Strait of Hormuz — a blockade first imposed in April 2026, suspended under a June agreement, and reinstated in July after fighting resumed. The strait has become the central bargaining chip in the war, with diplomatic “phased deal” proposals built around its reopening, as covered in Sivonex’s earlier report on Iran flights being grounded and the Saudis downing six Houthi missiles. One US official told NBC that Iran’s Revolutionary Guard Corps continues attempting to attack ships almost daily.

Sunday’s disclosure landed amid a flurry of war-related developments, according to the Times of India’s live blog: President Trump told Fox News he was confident the US would “win” the war with Iran “very soon,” left open possible renewed strikes before the US midterm elections, and reiterated that preventing Iran from acquiring a nuclear weapon is the primary US objective. Iran’s Foreign Minister Abbas Araghchi told NBC’s Meet the Press that Iran is “fully prepared” for war — including a “doomsday war” — while remaining ready for diplomacy, and said Trump’s rejection of Tehran’s proposed seven-day Hormuz-reopening ceasefire had not been formally communicated. The US envoy to the UN, Mike Waltz, said the proposal was rejected because it demanded access to billions in frozen funds and sanctions relief. The IRGC, meanwhile, reiterated its claim of capturing a second US underwater drone (“Mk 18 Mod 2 Kingfish”) in the strait, and France’s foreign minister said French military assets deployed to Saudi Arabia are “strictly defensive.”

The drone angle is a reminder of how contested this waterway has become — with US forces and Iranian units operating in close proximity. American strike capacity against Iranian targets remains a live part of the equation; RAF Fairford hosts B-1B bombers that have been used in US strikes on Iranian missile sites.

The Takeaway

To be clear: there is no evidence of a new attack today. The September 14 missile strike is two weeks old. The news is the disclosure — that eight Marines were wounded in a direct Iranian missile strike on a vessel they were operating, that the Pentagon never told the public, and that their injuries only entered the official casualty database ten days later. In a war where the US military continues enforcing a blockade in one of the world’s most important waterways while casualties are disclosed unevenly and sometimes reclassified quietly, that gap between what happened and what the public was told may matter more than the strike itself.