By Khalid Al-Jufairi
The Saudi-Houthi confrontation since mid-September 2026 has revealed a widening gap between what formal security guarantees Saudi Arabia has established and what sort of American deterrence and military power it can rely on. The repeated Houthi attacks on Riyadh’s King Khalid International Airport and Saudi energy infrastructure are testing Saudi Arabia’s ability to protect its domestic economic transformation while confronting an adversary capable of imposing substantial costs without achieving conventional military superiority.
The confrontation has exposed the gap between Riyadh’s expanding security partnerships and its capacity to translate those commitments into effective deterrence. Despite the August 7 Mecca Joint Defense Agreement which binds Saudi Arabia, Turkey, and Pakistan politically to treat an armed attack on one as an attack on all, the public statement leaves operational triggers and force commitments unspecified. In fact, Turkey’s insistence on defensive and technical, and not offensive support, illustrates the pact’s practical ceiling.
Limits of Collective Defense
With the Gulf Cooperation Council (GCC) states marred in phased mediations between Washington and Tehran, the bloc has long articulated a commitment to collective defense and greater military coordination, yet its institutional development has not eliminated differences among member states over threat perceptions, strategic priorities, and the use of force. To that end, the Mecca Agreement serves as a critical layer of security cooperation, extending beyond the GCC.
The multiplying defense commitments are not necessarily equivalent to integrating military capabilities or establishing common rules for intervention. The underlying challenge is not the absence of security partnerships, but the extent to which overlapping arrangements can generate coordinated responses to asymmetric threats without transferring national decisions over escalation to a collective framework. Thus, Saudi Arabia is now facing a fundamental test of deterrence credibility under conditions of expanding threat exposure, and even with the signed Mecca pact, Saudi military superiority over the Houthis has yet to translate into a capacity to contain escalation or impose an end to the conflict.
Since July 2026, the Houthis have moved from threatening a blockade of Saudi Red Sea ports to consolidating strategically significant positions on Yemen’s western coast and conducting strikes against Saudi cities, airports, and energy infrastructure. This progression has widened the confrontation beyond Yemen’s territorial battlefield, exposing the vulnerability of the maritime corridors and critical infrastructure on which Riyad’s economic and security strategies very much depend. The Houthis have paired territorial advances toward Bab al-Mandeb with ballistic and cruise missiles, drones, anti-ship systems, explosive boats, and an established naval-mine capability strengthened by Iranian supply. Although Saudi Arabia can impose heavy costs by air and support Yemeni counteroffensives, a major ground re-entry, however, risks repeating the strategic and humanitarian liabilities of the earlier intervention in 2015.
The Trump administration’s refusal to engage against the Houthis following Crown Prince Mohammed bin Salman’s request draws another boundary. The conflict is thus testing the reliability and operational limits of Saudi Arabia’s external security arrangements. Riyadh’s efforts to mobilize additional regional and international military assistance, conveys the limits of relying on American deterrence for objectives beyond the protection of U.S. forces, strategic infrastructure, and maritime security. Although Washington retains the capacity to intervene, its intervention thresholds need to coincide with Saudi Arabia’s objectives in Yemen, especially amid rising oil prices and mounting domestic political pressure ahead of the November US midterm elections.
For Riyadh, the strategic dilemma is becoming dire. It is unclear whether additional American military pressure and collective defense commitments can restore deterrence without drawing Saudi Arabia into a prolonged confrontation whose escalation it can influence but whose termination it cannot unilaterally determine.
Ending the Conflict
Although the statement on the Mecca pact establishes collective defense intent by Turkey and Pakistan, it does not, however, publicly specify trigger rules, integrated command structures, predetermined force packages or a compulsory offensive response. To that effect, the pact’s limitation is institutional and raises a more critical question than whether Turkey and Pakistan are willing to defend Saudi Arabia. What, precisely, can this pact deter when the adversary does not need to win a conventional confrontation to impose strategic costs?
That ambiguity matters because the Houthis possess an unusually deep nonstate strike portfolio. U.S. Defense Intelligence Agency assessments have documented Iranian-origin missile and unmanned-aircraft technology in Houthi arsenals, while U.S. forces have encountered Houthi anti-ship ballistic missiles and explosive unmanned surface vessels. The UN Security Council’s sanctions on Houthi naval commander Mansur al-Sa’adi also records repeated Houthi dispersal of naval mines, explaining that the maritime threat extends beyond missiles and drones.
The September offensive along Yemen’s western coast, including the capture of Mocha and advances toward Hanish, Dhubab, and Perim, further altered the geography of coercion around Bab al-Mandeb. Riyadh must now contend with an adversary capable of linking pressure inside Yemen to threats against Saudi infrastructure and the Red Sea corridor on which the country very much depends to mitigate its exposure in the Strait of Hormuz. Additional defensive commitments may reduce Saudi vulnerability, but they cannot readily reverse the territorial and political conditions from which Houthi coercion originates.
In fact, Iranian military assistance further complicates this equation without fully explaining Houthi behavior. The Houthi’s incorporation of Iranian technology has enlarged its strike capabilities, yet its territorial ambitions and political calculations remain anchored in Yemen, retaining considerable organizational and political agency.
Path to a Political Settlement
This organizational autonomy matters for war termination as even a reduction in Iranian support would not necessarily compel Houthi restraint or produce a settlement. Today’s Saudi challenge is not about restoring the credibility of retaliation, but rather about how Saudi Arabia establishes what the Houthis can be compelled to forgo, what guarantees would make those constraints last, and whether the Mecca pact can support that outcome without widening the conflict it was intended to contain.
Riyadh’s expanding security partnerships are intended to strengthen its defensive capabilities, but they cannot resolve the central dilemma of how to constrain an adversary whose coercive leverage extends from Yemen’s western coast to Saudi critical infrastructure and regional maritime routes. Any settlement that excludes enforceable restrictions on Houthi military activity around Bab al-Mandab risks converting a temporary ceasefire into a dire source of strategic vulnerability.
Saudi Arabia’s diplomatic strategy should distinguish between containing immediate escalation and establishing the conditions for war termination. Direct engagement with the Houthis, sustained communication with Tehran, and coordinated Gulf diplomacy offer complementary avenues for reducing the conflict’s regional exposure. The Mecca pact cannot substitute for a negotiated political framework that addresses the sources of Houthi leverage. For Riyadh, the decisive test of strategic autonomy is not whether it can assemble sufficient military support to intensify the conflict, but whether it can shape the conditions under which further escalation becomes unnecessary. That distinction will determine whether Saudi Arabia’s expanding security architecture becomes an instrument of regional stabilization or another mechanism for managing an unresolved war.
Dr. Khalid Ali Al-Jufairi is a scholar and professor of international politics. He teaches across leading institutions in Qatar and internationally, and engages actively with policy communities in the Gulf and beyond. He is an Abshire-Inamori Fellow at the Center for Strategic and International Studies in Washington, DC, and the inaugural Al-Khaleej Fellow at the Fiker Institute in Dubai.
Section: (integrated-futures-initiative) Photo: Wikimedia Commons