The Houthi Advance at Bab el-Mandeb Shifts Global Shipping Risks

The Houthi offensive has effectively transformed the Red Sea’s southern entrance into a zone of heightened volatility. While the strait remains open, the group’s ability to project force from the Yemeni coastline creates a persistent threat that disrupts global supply chains. History suggests that physical blockades are unnecessary to achieve strategic impact; the mere perception of danger is sufficient to drive commercial shipping toward the far longer, costlier route around the Cape of Good Hope.

This development complicates the export strategy of Saudi Arabia, which had previously relied on its 1,200-kilometre East-West Pipeline to bypass the volatile Strait of Hormuz. With that pipeline recently compromised by drone strikes, Riyadh faces a dual-front challenge: securing oil transit through the Persian Gulf while managing the vulnerability of its Red Sea terminals. In the second quarter of 2026, the Bab el-Mandeb transit corridor handled 8.1 million barrels of crude and petroleum products daily, underscoring the scale of potential disruption.

While Tehran provides the Houthis with technical and material support, the relationship remains complex. The Houthis operate with their own internal imperatives, yet their strategic positioning serves Iranian interests by forcing Saudi Arabia and its allies to defend two distinct maritime theaters simultaneously. By weaponizing geography, the Houthis have shifted the regional power balance, ensuring that the cost of passage through the Red Sea is no longer measured solely in fuel and insurance premiums, but in the unpredictable risks of an escalating conflict.