Yemen’s Iran-backed Houthi movement seized the entire Red Sea coast and critical islands in a lightning offensive ending on September 11, 2026, tightening control over the Bab al-Mandab Strait, displacing thousands, and driving global oil prices above $100 a barrel amid regional conflict.
Lightning Red Sea Offensive Secures Coastal Strongholds and Islands
The Iran-backed Houthi movement seized control of Yemen’s entire Red Sea coast and captured three strategic islands in a rapid offensive completed on September 11, 2026, cementing their hold on a vital shipping corridor linking Europe and Asia. The week-long push drastically altered a military map that had remained nearly static for four years.
By Friday, September 11, Houthi forces reached Mayyun Island, also known as Perim Island, which divides the narrow Bab al-Mandab waterway into two shipping channels. A local government official confirmed that the Houthis had completed their takeover of the Bab al-Mandab area and Mayyun Island
.
Government military officials later confirmed that the group also seized Greater and Lesser Hanish islands, securing the final pockets of the Red Sea coastline previously outside their reach. Everything that was under our control on the western coast has fallen,
a military official acknowledged. Witnesses reported armed men deploying along the shore in military vehicles.
Energy Markets Reel as Hormuz Blockade and Pipeline Attacks Converge
The coastal sweep compounds international economic shockwaves stemming from months of Iranian blockades in the Strait of Hormuz. With the critical Persian Gulf transit route choked off, Saudi Arabia—the world’s largest oil exporter—had relied heavily on its East-West pipeline to divert crude shipments to Red Sea ports.
Those alternative routes faced severe disruption on Thursday morning, September 10, when satellite imagery from Copernicus Sentinel Data revealed black smoke billowing near Medina along the pipeline route.
According to the International Energy Agency, Saudi crude supply plummeted by 2.3 million barrels per day in August to 6 million barrels per day—the lowest level in over three decades—pushed down in part by Houthi attacks on commercial traffic transiting the Bab al-Mandab Strait. Driven by the mounting supply squeeze, global oil prices surged past $100 a barrel, while average US diesel prices topped $6 on September 11.
Strategic Gains and Regional Repercussions Across the Middle East
Teheran swiftly welcomed the territorial expansion. Mohammad Mokhber, an adviser to Iranian supreme leader Mojtaba Khamenei, congratulated the Houthis on their resounding victory
on September 11. Farea Al-Muslimi, a research fellow at the Chatham House think tank, told AFP that Now the Iranians don’t only control the Strait of Hormuz, but they control the other most strategic chokepoint in the Middle East.
While Houthi military spokesman Yahya Saree declared in a televised broadcast that maritime navigation remained safe for all companies except Saudi ships, the geopolitical stakes triggered intense diplomatic scrambling.
Counteroffensives and Mounting Humanitarian Toll in Yemen
On the ground, Saudi-backed government units launched counteroffensives to claw back lost ground.
Government-aligned forces reported destroying a Houthi military convoy on the al-Waziyah front and clashing with fighters on the outskirts of al-Mudaraba in Lahj province. Government forces also struck Houthi positions and equipment in Dhubab and al-Khokha along the Red Sea coast.
Despite these counterattacks, the human cost of the renewed hostilities has climbed steeply. The UN migration agency reported that the week-long offensive has killed more than 500 people and displaced approximately 46,000 residents.
Leadership Response and What Lies Ahead
Military experts warn that holding the sprawling coastline will present long-term logistical and strategic burdens for the Houthis. Saeed Thabit, Al Jazeera’s bureau chief in Yemen, noted that the open nature of the coast leaves supply routes vulnerable to aerial monitoring and counterattacks, while local social influence remains weak compared with northern strongholds.
As government forces reorganize with air support and fresh military reinforcements, attention turns to whether regional diplomatic efforts—including scheduled talks between Gulf foreign ministers and their Iranian counterparts facilitated by Oman—can yield a temporary shipping agreement.
