Houthi Coast Gains Tighten Grip on Bab el-Mandeb and Red Sea Shipping Risk
Yemeni forces aligned with Ansarallah have seized islands in the Red Sea and more than 130 km of coastline, edging closer to real fire control over the Bab el‑Mandeb Strait. That shift puts commercial shipping, Saudi supply routes, and efforts to contain the war under new pressure — with no obvious alternative corridor for much of Europe and Asia’s trade.
Control of a few barren islands and a narrow strip of coastline is quietly reshaping risk for one of the world’s most important sea lanes. Forces loyal to the Sana’a-based authorities, aligned with Yemen’s Houthi movement, have completed an offensive along Yemen’s western coast that they say now gives them control of around 130 kilometers of shoreline and the Red Sea’s Hanish Islands, putting more of the Bab el‑Mandeb Strait within range of their weapons.
On 10 September, those forces launched an amphibious assault on the Hanish archipelago and claimed to have taken the islands from Saudi-backed rivals. At the same time, Houthi units advanced south of the port of Mokha along the coast in Taiz governorate, capturing Jabal al‑’Umari, the 17th Brigade’s barracks, and the town of Dhubab and its nearby airfield roughly 15 kilometers from Bab el‑Mandeb. Follow‑on reporting from pro‑Sana’a channels framed the operation as complete, with the newly held coastline and islands allowing them to increase control over Red Sea traffic and to exert “fire control” over the Strait — the ability to hit vessels or block passages with missiles and other weapons.
For civilians in coastal Yemen, that shift isn’t an abstract change on a map. Every new front line tends to pull supply routes, fuel deliveries, and humanitarian convoys into its orbit. The reported stabilization of the Taiz front after these gains could mean fewer active clashes in some localities, but it also solidifies the dividing lines that have left communities trapped between rival authorities and cut off from services. On the Saudi‑backed side, the loss of positions and islands strips away defensive depth for local allied forces and leaves families of captured combatants facing fresh uncertainty.
For shipping operators, the concern is brutally simple: more hardware pointed at a chokepoint they can’t avoid. Around 10% of global seaborne trade and a large share of Europe‑Asia container traffic passes through Bab el‑Mandeb between Yemen and the Horn of Africa. If Houthi claims of expanded fire control are borne out, tankers and container ships heading to or from the Suez Canal face an increased risk calculus on top of already elevated threats from missile and drone attacks across the broader Red Sea. Insurers, already sensitive to Houthi attacks on vessels farther north, will look closely at evidence of new launch sites or coastal batteries within range of the Strait.
Strategically, the offensive also chips away at Saudi Arabia’s leverage. Pro‑Sana’a reporting stresses that the coastal advances and island seizures ease pressure from what they describe as Saudi attempts to blockade the Hodeidah port, the key entry point for food and fuel into much of northern Yemen. If Houthi‑aligned forces can both reduce the effectiveness of that pressure and threaten Saudi‑linked shipping in the Red Sea, Riyadh faces a more difficult balance between military containment and negotiating an end to the conflict terms that preserve its security interests.
This operation fits a broader pattern: the Houthis have been steadily turning geography into bargaining power, using anti‑ship missiles, drones, and now coastal control to make the Bab el‑Mandeb and adjacent waters part of their negotiating toolkit. Even without a formal declaration of a blockade, the mere possibility that more of the Red Sea is within range of their missiles is enough to complicate route planning, raise freight and insurance costs, and prompt navies from outside the region to expand patrols.
The shareable lesson here is plain: Bab el‑Mandeb risk doesn’t require a full closure of the Strait; it just needs enough uncertainty that ships, insurers, and governments start planning around worst‑case scenarios.
The next signals to watch are concrete. Satellite imagery or naval reporting that confirms new missile sites on the captured coastline, changes in warship deployments by Saudi Arabia or outside powers near Bab el‑Mandeb, and any direct attacks on vessels in the narrower southern approaches will show whether this is primarily a symbolic victory or a real inflection point for global shipping risk. Any shift in Hodeidah’s cargo flows — up or down — will also indicate how much Saudi pressure has actually been blunted by these gains.
Sources
- OSINT