(By Khalid Masood)
A Call, and A Refusal
On Thursday, as Houthi fighters pushed down Yemen’s Red Sea coast towards the shipping lanes of the Bab el-Mandeb Strait, Saudi Arabia’s crown prince picked up the telephone — twice. Both times, according to Axios, Donald Trump declined to order American strikes against the Iran-backed movement. On the surface, this looks like a presidential snub. In substance, it is something far more consequential: the clearest statement yet of the administration’s hierarchy of commitments in the Gulf — and of where Riyadh now ranks within it.
According to Axios, which cited two U.S. officials, Mohammed bin Salman called Trump twice on Thursday urging American military action as Houthi forces seized the port city of Mocha and advanced towards the Hanish islands, gaining leverage over one of the world’s most critical shipping routes. Reuters, which carried the Axios report, noted it could not independently verify the account; neither the White House nor the Saudi embassy in Washington responded to requests for comment.
Washington’s answer, in effect, was: help, but not hands. Admiral Brad Cooper, commander of U.S. Central Command, travelled to Saudi Arabia on Thursday for urgent coordination talks. Roughly 200 American military personnel are already in the kingdom providing non-kinetic support — intelligence, surveillance and targeting data — and officials indicated more such assistance would follow. But no U.S. aircraft will fly strike sorties over Yemen.
“The United States is focused on protecting our core national security interests – such as ensuring freedom of navigation in the Red Sea – while empowering our regional partners to take the lead.”— A senior U.S. administration official, speaking to Axios
The operative word is “partners”: the United States will enable, but it will not fight.
Anatomy of a Chokepoint
Why the alarm? Because of geography. The Bab el-Mandeb Strait — its name means “Gate of Tears” — narrows to barely thirty kilometres between Yemen and the Horn of Africa. Through it passes roughly 8 to 12 per cent of global seaborne trade, including several million barrels of oil a day bound for the Suez Canal. When ships cannot transit safely, they face a costly reroute via the Cape of Good Hope and soaring insurance premiums.
The mechanism of coercion is straightforward: anti-ship missiles, one-way attack drones and explosive-laden boats launched from concealed coastal positions are cheap to hide and costly to find. Even the threat proved sufficient during the worst of the 2023–2025 Red Sea crisis, when several major carriers diverted their vessels entirely until escort arrangements and fragile understandings restored a measure of confidence.
The Houthis understand this arithmetic intimately. Control of Mocha, and a further push towards Perim Island and the Hanish archipelago, gives a movement with no navy the means to hold a share of global commerce hostage. It was precisely this prospect that drew Saudi Arabia into its intervention in Yemen in 2015; a decade on, a scenario once treated as a nightmare has become a military map.
The Road from the Truce
The current escalation was not inevitable. A UN-brokered truce took hold in April 2022, quietening the front lines. In March 2023, the Saudi–Iranian détente brokered by China suggested Riyadh was actively seeking an exit from its costly Yemen entanglement, and the port of Hodeidah grew calm.
The war’s toll hangs over every calculation: since 2015 the conflict has killed hundreds of thousands of Yemenis, directly or through hunger and disease, and the United Nations has repeatedly described the country as the site of one of the world’s worst humanitarian crises. That history explains both Riyadh’s eagerness to disengage in 2022 and 2023, and the domestic political risk of any renewed Saudi military commitment.
Then came Gaza. From late 2023, the Houthis attacked commercial shipping under the banner of Palestinian solidarity — sinking one vessel, seizing others, killing seafarers — and the United States and Britain responded with a sustained air campaign through 2024 and 2025. The strikes degraded Houthi capability; they did not break it.
The present crisis traces to early July 2026, when Saudi warplanes attempted to prevent an Iranian aircraft carrying senior Houthi officials from landing at Sanaa airport — the delegation was returning from the funeral in Tehran of former supreme leader Ali Khamenei. The Houthis retaliated with missiles and drones against Saudi tankers and energy facilities. Riyadh escalated; its air campaign, however, proved unable to halt the coastal advance. Hence the telephone calls.
From “we don’t need you” to “please intervene”
The request marks a sharp reversal. In July, Axios reported, Riyadh had told Washington it could handle the Houthis alone, seeking only political backing for a strike on Sanaa airport — which Trump provided. Within weeks, that confidence had collapsed. What changed was not the Houthis’ raw strength but their position: they now hold leverage over a strait, and leverage of that kind cannot be neutralised from altitude.
The Doctrine: Hormuz First
A hierarchy of waterways
Officials told Saudi counterparts that Trump’s directive is to keep American forces concentrated on Iran and the Strait of Hormuz, and to avoid opening a second front. The logic is cold-eyed and, in narrow terms, defensible. One waterway is existential; the other, merely expensive.
| Strait of Hormuz | Bab el-Mandeb | |
|---|---|---|
| Oil flows | Around one-fifth of global consumption (~20 million bpd) | Roughly 6–8 million bpd (about 8% of seaborne oil) |
| LNG | About one-fifth of global trade (Qatar) | Negligible |
| Alternatives if closed | No practical sea alternative; limited pipeline capacity (Saudi East–West, UAE to Fujairah) | Reroute via Cape of Good Hope: +~3,000 nautical miles, 10–14 days |
| Impact of closure | Immediate global supply shock | Freight costs, delays, insurance spikes; absorbable |
| U.S. posture, 2026 | Priority — forces concentrated on Iran | Enablement only; no strike sorties |
| Collective defence cover | U.S. naval forces; bilateral guarantees | Saudi-led coalition; SMDA/Mecca pact (territorial defence only) |
Table: a comparison of the two chokepoints. Figures are approximate, compiled from public estimates (EIA, UNCTAD) and recent reporting.
Read by allies and adversaries
An administration determined to husband its military bandwidth for the Iran file can therefore justify consigning Yemen to regional partners. But strategy is read by allies as well as adversaries, and Riyadh’s reading is stark: the American security guarantee is now tiered. The administration official’s statement is not a holding line; it is a doctrine announcement.
What the Houthis Gain
In Sanaa, the refusal is a propaganda windfall. The movement survived the most sophisticated air campaign in its history, outlasted a Saudi-led coalition, and has now forced the kingdom to plead for help — and be rebuffed publicly. Militarily, little changes: Houthi coastal missile and drone inventories, hardened by years of bombardment, remain largely intact. And in Tehran, the arithmetic is irresistible — pressure on Saudi Arabia and Red Sea commerce at minimal cost and no confrontation.
The Pakistani Card
Two pacts, one architecture
Riyadh holds one other card, which Washington is content for it to play: Pakistan. In September 2025, the two countries signed a Strategic Mutual Defence Agreement whose unpublished text carries an Article 5-style clause — any attack on one party being treated as an attack on both — and in August 2026, amid the American and Israeli war on Iran, they broadened the principle into the trilateral Mecca Joint Defence Agreement with Turkey.
Already on the ground
The architecture is not merely theoretical. Since 2025, Islamabad has deployed to the kingdom some 8,000 troops, a squadron of JF-17 fighters and a Chinese-supplied HQ-9 air-defence system, financed by Riyadh. And Islamabad has publicly put the pact on the table for precisely this contingency.
“If there is unprovoked aggression, or a spillover of whatever is happening in Yemen into Saudi Arabia, definitely the Mecca agreement will become operational. There should be no doubt about that.”— Khawaja Asif, Pakistan’s defence minister, speaking to Geo News, 9 September 2026
The limits of the shield
Yet the pact’s limits are as instructive as its commitments. Pakistan shares a 900-kilometre border with Iran, has a substantial Shia population that reaches into its officer corps, and has cast itself as a mediator between Washington and Tehran — none of which is compatible with fighting the Houthis. When Riyadh asked for Pakistani troops for its Yemen campaign in 2015, Islamabad’s parliament refused outright. The near-universal assessment among analysts is that Pakistan will help defend Saudi territory but will not join offensive operations: a shield, not a spear. It is telling that the crown prince telephoned Trump rather than Islamabad. Collective defence pacts deter states; they do not hunt militias.
What Happens Next
Scenario one: the enablers’ war
The most likely path is a Saudi-led campaign with American enabling — intelligence, air defence, logistics — but no U.S. sorties. Pakistani units, already on Saudi soil, would most plausibly thicken the kingdom’s air and missile defence around its cities and bases, freeing the Royal Saudi Air Force for offensive tasking.
Scenario two: the quiet channel
Uglier for Riyadh, but familiar: quietly reopening channels to the Houthis. Politically toxic at home, it is nonetheless the sort of conclusion that attrition has historically imposed on this war.
Scenario three: the American trigger
The wild card is a Houthi strike on shipping or U.S. assets that kills Americans — an event that would collapse the doctrine overnight. It is precisely this trigger that Washington’s posture is designed to avoid, and that makes the strait so dangerous in the meantime.
Riyadh, for its part, is already hedging. It has announced efforts to build an international coalition to protect Red Sea shipping — a tacit acknowledgment that the American cavalry, this time, is staying home.
The real headline
The story of this week is not that Donald Trump declined a crown prince. It is that the United States has, in effect, published a hierarchy of which waterways it is willing to fight for — and Bab el-Mandeb is not among them. The Houthis have been told they operate below Washington’s threshold; America’s partners have been told where that threshold lies. Both will adjust accordingly. The strait, for now, belongs to those willing to contest it — and after Thursday, that list does not include the United States.
