The Houthis Are Testing the Limits of Collective Defense
Last updated 06:27 AM EDT • Read time: 7m
A reported drone attack on an electricity facility in Medina has raised a question far larger than the latest confrontation between Saudi Arabia and Yemen’s Houthis.
The Saudi-led coalition says the strike damaged a transformer at a distribution station supplying the Prophet’s Mosque. The Houthis deny responsibility. Whatever the final attribution, the incident exposes a problem the Middle East’s emerging defense arrangements can no longer avoid.
States can promise to defend one another. It is harder to define what that promise requires when the attacker is a heavily armed non-state actor operating from inside another country’s civil war.
That is the dilemma confronting the Saudi-Turkiye-Pakistan security framework.
The three states can strengthen missile defense, exchange intelligence, and protect Saudi territory without entering Yemen’s war. But the distinction becomes less clear as cooperation deepens. Intelligence sharing can become targeting support, air-defense deployments integrated combat operations, and maritime escorts interdiction.
None of these transitions requires a formal decision to enter a war.
That is the alliance trap emerging in the Red Sea.
From collective defense to entanglement
Saudi Arabia, Turkiye and Pakistan have moved quickly to give the Makkah Joint Defence Agreement institutional and military substance.
At the first meeting of its Strategic Political and Defence Committee on August 31, the three countries agreed to establish a permanent secretariat in Saudi Arabia and deepen defense-industry cooperation and military coordination.
Their military chiefs later met in Riyadh to discuss intelligence sharing and capability integration.
So far, however, an important distinction remains between strengthening Saudi Arabia’s defenses and participating in military operations inside Yemen.
A defensive architecture can include radar coverage, missile interception, counter-drone systems, early warning, and protection of critical infrastructure.
The difficulty begins when these measures prove insufficient.
If attacks penetrate Saudi airspace, damage major energy infrastructure or are perceived as threatening Makkah or Medina, pressure for a stronger response will rise.
The central question then becomes unavoidable: where does collective defense end?
A threat beyond Yemen’s borders
The Houthis complicate conventional deterrence because they do not fit neatly into traditional alliance assumptions.
They exercise territorial control without international recognition and possess missile and drone capabilities capable of projecting force beyond Yemen.
The UN Security Council’s approach has evolved accordingly. Resolution 2216 established an arms-embargo framework, Resolution 2624 in 2022 explicitly listed the Houthis under it, and Resolution 2722 in 2024 demanded an end to attacks on merchant and commercial vessels in the Red Sea.
The 2019 attacks on Saudi Arabia’s Abqaiq and Khurais oil facilities had already demonstrated how a non-state actor could threaten critical energy infrastructure far beyond the battlefield.
The subsequent expansion of Houthi operations into the maritime domain widened the problem further. Yemen’s conflict now intersects with regional deterrence, international shipping, and global commerce.
Makkah and Medina create a different threshold
Saudi energy facilities and military installations are strategically important.
Makkah and Medina are different. Threats involving Islam’s two holiest cities carry political and religious significance far beyond Saudi Arabia’s borders.
Pakistan’s position illustrates the distinction. After Saudi Arabia reported a Houthi drone attack targeting Makkah in September, Islamabad condemned the incident and reaffirmed support for Saudi sovereignty and safeguarding the Haramain Sharifain.
At the same time, Pakistan has traditionally supported Yemen’s sovereignty, unity and territorial integrity and a political resolution through dialogue.
These positions are not inherently contradictory.
Pakistan can support the defense of Saudi territory and the Holy Sites without treating military escalation as a substitute for resolving Yemen’s conflict.
But a major attack on Makkah or Medina could generate political and public pressure across the Muslim world in ways that a strike on an oil facility might not.
The strategic consequences therefore depend not only on physical damage but also on the symbolic value of the target.
The Red Sea creates another route into conflict
Even if alliance members avoid direct operations inside Yemen, the maritime theatre creates another path toward deeper involvement.
Bab el-Mandeb is one of the world’s critical maritime chokepoints, connecting the Red Sea with the Gulf of Aden and the Indian Ocean. Disruption there affects trade linking Asia, the Gulf, Africa, and Europe.
Houthi attacks on commercial vessels therefore transform Yemen’s conflict into a wider maritime-security problem.
All three alliance partners have direct interests at stake. Saudi Arabia depends on secure Red Sea access, Turkiye on uninterrupted maritime trade, and Pakistan on open sea lanes for trade and energy security.
Yet maritime security has its own escalation ladder.
Surveillance and escort missions may begin as defensive measures. An escort may intercept a missile aimed at a merchant vessel. The next step could involve stopping suspected weapons shipments, followed by pressure to strike launch sites or coastal military positions.
The boundary between protecting navigation and participating in hostilities can narrow quickly.
A precedent Pakistan already knows
Pakistan confronted a version of this dilemma in 2015, when its parliament declined direct participation in the Saudi-led intervention in Yemen while maintaining support for Saudi territorial integrity.
Today, Houthi missile and drone capabilities are more advanced, maritime attacks have internationalized the conflict, and regional defense cooperation is more institutionalized.
But the underlying distinction remains useful.
Defending Saudi territory offers a relatively definable mission. Participation in Yemen does not.
Once forces become involved, objectives can expand. Intelligence collection creates targeting requirements, deployments generate force-protection needs, and missile defense can create pressure to suppress launch systems.
Alliance entanglement often develops through a sequence of limited and individually defensible steps.
Four thresholds the alliance must define
The new framework therefore needs to establish its limits before a major crisis forces its members to improvise them.
Four thresholds require clarity.
The first is territorial: does every missile or drone attack on Saudi Arabia activate collective-defense obligations, even if intercepted without damage?
The second is maritime: does an attack on commercial shipping in the Red Sea constitute an attack on shared alliance interests?
The third is operational: at what point do intelligence sharing, missile defense and maritime protection become targeting assistance or direct participation in Yemen?
The fourth is political and religious: should an attack involving Makkah or Medina trigger a different response from an attack on ordinary infrastructure?
These distinctions may seem technical during periods of relative calm. Under sustained attack, they become strategic.
A credible alliance must reassure members that assistance will arrive when required. But credibility does not require unlimited commitments.
Clear boundaries can strengthen deterrence by clarifying both what will trigger a response and what alliance members are actually promising. Too much ambiguity can produce miscalculation.
The real test is restraint
Discussion of the Saudi-Turkiye-Pakistan framework has focused on whether its members will demonstrate sufficient resolve.
That is only half the problem.
An alliance can fail because its members refuse to act. It can also fail strategically because mechanisms designed to defend them pull them into conflicts they intended to contain.
The Houthi challenge exposes that second danger.
Saudi Arabia faces serious security concerns from missile and drone attacks. Commercial vessels have navigational rights protected under international law. Pakistan and Türkiye have interests in Saudi stability and secure maritime routes.
At the same time, Yemen remains a fractured country whose war has already imposed immense humanitarian and political costs.
The challenge for the emerging defense framework is not simply to prove that an attack on one member has consequences. It is to define those consequences before events define them instead.
The real measure of the Middle East’s new alliances will not be whether they can demonstrate solidarity under fire, but whether they can determine where that solidarity stops.
Without that boundary, collective defense can become collective escalation and an alliance created to contain regional instability can become another mechanism through which it spreads.
Saima Afzal is a researcher specializing in South Asian security, counterterrorism, and broader geopolitical dynamics across the Middle East, Afghanistan, and the Indo-Pacific. Her work examines strategic affairs and evolving patterns of regional conflict. She is currently a Research Scholar at Justus Liebig University, Germany.
image: This image taken from undated video released Monday, Oct. 5, 2026, by the Yemeni government-allied Southern Giants Brigades media office shows, what the group says, are its fighters firing a weapon mounted on a pickup truck during clashes with the Iran-backed Houthi group in Dhobab district, Taiz, Yemen. (Southern Giants Brigades Media Office via AP, File)