As fighting around the Red Sea has widened the regional fallout from the Iran conflict, attention has turned to the Bab el-Mandeb Strait, a maritime chokepoint that carries major oil and cargo flows between the Red Sea and the Gulf of Aden. That broader pressure sharpened on Friday, September 11, 2026, when reports said Saudi Crown Prince Mohammed bin Salman urged President Donald Trump to strike Yemen’s Houthis after the group seized a strategic island off Yemen’s coast. The developments placed renewed focus on Saudi Arabia’s oil routes and on Washington’s next steps in a conflict with global economic implications.
Saudi appeal followed Houthi advance at Bab el-Mandeb
Saudi Crown Prince Mohammed bin Salman sought U.S. military assistance from President Donald Trump on Thursday, according to Reuters and CBS News, as Houthi forces pushed down Yemen’s Red Sea coast and tightened pressure on the Bab el-Mandeb Strait. Reuters reported that multiple sources familiar with the matter said the crown prince asked Trump for help as the Iran-aligned Houthis expanded their offensive. Axios separately reported that Mohammed bin Salman made two calls urging U.S. strikes, though the White House did not publicly detail any such conversations.
The immediate military backdrop was the Houthi seizure of Yemen’s port city of Mokha and the strategic island of Perim, also known as Mayun, according to Reuters-sourced reporting, AP, and CBS News. AP reported Friday that the island sits at the southern entrance to the Red Sea and is considered vital because of its position near a major shipping lane. Yemeni government and Houthi officials cited by AP confirmed the island’s capture.
Those battlefield gains added to an already volatile week for Saudi infrastructure. AP reported that Saudi Arabia shut down a major oil pipeline as a precaution after an attack, while Reuters previously reported Houthi attacks on Saudi-linked shipping and energy assets. Together, the military advance and the pressure on energy routes raised the stakes for Riyadh’s request to Washington.
The most direct geographic impact is centered on the Bab el-Mandeb Strait, where ships moving between Europe, Asia and the Middle East pass through one of the world’s narrowest and most heavily used sea lanes. AP reported that the seizure of Mokha and Perim gives the Houthis a stronger position from which to threaten traffic moving through the southern Red Sea. Reuters, cited in follow-on coverage, reported that roughly 7% of global oil output passes through the strait.
For Saudi Arabia, the local impact is especially significant because the Red Sea corridor has served as an alternative export route when risks rise in the Strait of Hormuz. AP reported that Mayun island had been important to Saudi oil shipments and other exports as Iran threatened vessels farther east. Analysts cited by AP said Houthi control of terrain close to the shipping lane could complicate insurance, routing and naval protection for commercial vessels.
What remains unclear is how long the Houthis can hold the newly seized positions and whether the United States will change its military posture. The White House did not publicly confirm details of the Saudi requests in the reports reviewed, and Saudi officials have not released a fuller public accounting of any bilateral military planning tied to the island’s fall. For now, the confirmed facts are the territorial gains, the Saudi outreach and the heightened risk around a critical shipping corridor.
The latest Saudi outreach reflects a shift from earlier phases of the Yemen war, when Reuters reported Riyadh had told Washington it could manage the Houthi threat without direct U.S. intervention. That position has changed as the Houthis expanded operations along the western coast and as the broader confrontation involving Iran and Iran-backed groups spread across multiple fronts. Reuters and AP both described the Houthi push as part of a wider escalation affecting shipping, oil infrastructure and regional security planning.
Analysts cited by Reuters said the Houthi gains were not a sudden tactical burst but the result of sustained military preparation, outside backing and pressure on under-resourced government defenses. AP reported that the fall of Mokha and Mayun could strengthen the Houthis’ ability to disrupt maritime traffic, while Reuters-linked coverage said Saudi Arabia has also explored broader coalition support to protect Red Sea shipping. Those factors help explain why Riyadh elevated its concerns directly to Trump.
For residents, businesses and energy markets, the practical meaning is straightforward: the Red Sea remains a live security and transport risk, and any further disruption could affect oil movements, shipping costs and regional military deployments. No U.S. strike had been publicly confirmed as of the latest reports, but the pressure on decision-makers intensified after the events of September 11. The next measurable signal is likely to come through military statements, shipping advisories or official Saudi and U.S. comments on Red Sea security.