Skip to content
Welcome, thoughtbot's Giant Robots listeners!Start here
Autonomous Systems: Land & Sea
24JUN

Bab el-Mandeb returns as second chokepoint

4 min read
16:13UTC

International Crisis Group's Yemen analyst Ahmed Nagi told PressTV Houthi forces are "very likely to escalate" in Bab el-Mandeb if the US blockade bites Iran. Brent has not priced a dual-chokepoint scenario.

TechnologyDeveloping
Key takeaway

A Bab el-Mandeb closure alongside Hormuz would cut 25% of seaborne energy supply and neutralise Saudi Arabia's pipeline backup.

Ahmed Nagi, senior Yemen analyst at the International Crisis Group, told PressTV that Houthi forces are "very likely to escalate in Bab el-Mandeb" if the US blockade begins to bite Iran⁠1. A Yemeni military official quoted by the same outlet in late March called closure of the Red Sea strait "among the primary options" if escalation continued. Ali Akbar Velayati, a former Iranian foreign minister with continuing influence in the Iranian establishment, told PressTV that "the unified command of the Resistance front views Bab al-Mandeb as it does Hormuz".

Bab el-Mandeb is the narrow strait at the southern end of the Red Sea, between Yemen and Djibouti, that every Gulf-origin cargo bound for Europe via Suez must pass through. If it closes at the same time as Hormuz, the two closures together remove roughly 25% of global seaborne energy supply from market. Every Gulf-origin cargo bound for Europe or Asia then needs a Cape of Good Hope detour, 10 to 20 extra days at sea, with freight rates rising sharply before any insurance uplift. The scenario exceeds any case modelled in IEA emergency-release protocols.

Saudi Arabia's East-West Pipeline, Petroline, was restored to its full 7 million barrels per day capacity as the contingency backup if Hormuz closed. Petroline bypasses Hormuz. It does not bypass Bab el-Mandeb. The pipeline ends at Yanbu on the Red Sea coast, and a Red Sea chokepoint closure eliminates that alternative routing entirely. The dual-chokepoint scenario is the one contingency the published Saudi infrastructure cannot resolve.

Markets already treat the Hormuz operation as a partial action rather than a full closure on the pullback. The dual-chokepoint scenario has not yet been re-priced into Brent at all. The caveat from Nagi matters: Houthi operational capacity in the Red Sea was degraded by the 2025 US campaign, and "very likely to escalate" from a senior analyst is not the same as confirmed operational readiness. The separate development that Hezbollah has received a new jet-powered Iranian loitering munition (see event 11) suggests the resupply network is still partially functional, which tilts the probability towards the Houthis having more than rhetoric to deploy.

Deep Analysis

In plain English

There are two narrow sea passages that most of the world's oil and gas must travel through. One is the strait of Hormuz, between Iran and the Gulf states, which the US is currently blockading. The other is the strait of Bab el-Mandeb, at the southern end of the Red Sea, between Yemen and Djibouti. The Houthi movement in Yemen, which fought a successful campaign against shipping in the Red Sea in 2023 and 2024, is now signalling it might close the second strait as well, if the US blockade starts hurting Iran. If both straits were closed at the same time, roughly a quarter of the world's energy supply would have no sea route. The Saudi pipeline that was restored as a backup route for Hormuz ends on the Red Sea coast, so it would be useless if Bab el-Mandeb were also blocked. Oil and gas prices for European and Asian buyers would rise sharply. The important caveat is that the Houthis' ability to actually close Bab el-Mandeb is uncertain after the US degraded their forces in 2025. The threat is real but the capability is unconfirmed.

What could happen next?
  • Risk

    A dual-chokepoint closure would cut roughly 25% of global seaborne energy supply and eliminate Saudi Arabia's Petroline alternative routing, exceeding any scenario modelled in IEA emergency-release protocols.

  • Consequence

    Current Brent crude pricing reflects partial Hormuz closure only; a credible Bab el-Mandeb threat materialising would trigger a repricing well above the blockade-day $103 peak.

First Reported In

Update #68 · Sanctioned tankers slip the blockade

PressTV· 14 Apr 2026
Read original →
Different Perspectives
EDGE Group
EDGE Group
EDGE took control of Italian engine maker CMD in October and signed exploratory USV memorandums with Novamarine and Abu Dhabi Ship Building in early November. It is assembling an Italian hull and engine supply chain around Emirati autonomy, with no customer named.
Japan Ministry of Defense
Japan Ministry of Defense
Nikkei reported on 29 October that the ministry will start research in fiscal 2027 towards mass-producing underwater drones for detection and attack, with prototypes by fiscal 2035. The stated aim is to deter China's growing submarine fleet with fewer sailors at risk.
Kongsberg Discovery
Kongsberg Discovery
Kongsberg received a $54m DIU modification, mainly for AUV deliveries, and Camilla Kiss said the unit has signed 1.7bn Norwegian kroner of AUV contracts in 2026. The Norwegian maker sells into the US market as an established production line.
Elbit Systems
Elbit Systems
Elbit bought ISE of Vancouver, maker of more than 250 AUVs, on 20 October for a price it called not material. The Israeli group adds an underwater vehicle line to its naval business.
Defense Acquisition Program Administration
Defense Acquisition Program Administration
DAPA's 179th committee cleared a 591bn won mine-warfare USV programme on 6 November, alongside the Jangbogo-N nuclear submarine. HD Hyundai's Long Beach trial with Anduril shows Korean industry pitching hulls abroad while Seoul funds its own.
Finland National Emergency Supply Agency
Finland National Emergency Supply Agency
NESA opened an €11m competition on 4 November for radiation-sensing drones and ground robots, including quadrupeds, for the EU's rescEU stockpile. It is a civil-protection buyer using open tender, with a decision expected in March 2027.

Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.