How Far Will Egypt Go to Help Saudi Arabia Secure the Red Sea as Houthi Threat Grows?
By Sadaf Sundas Riaz — SCN News
CAIRO/RIYADH, Sept. 17 — Egypt has powerful reasons to help Saudi Arabia secure the Red Sea as Houthi advances in Yemen and renewed drone and missile attacks expose one of the Middle East's most important maritime corridors to another period of instability. For Cairo, protecting Saudi Arabia and keeping the Bab el-Mandeb Strait open are increasingly part of the same security problem: ships entering the Red Sea through the strait are the ships Egypt needs to continue north through the Suez Canal, one of its most important sources of foreign currency. But Egypt's interests also explain the likely limit of its involvement — Cairo has strong incentives to defend navigation, share intelligence and strengthen Saudi deterrence, while avoiding another open-ended military campaign inside Yemen.
That balance was visible when Saudi Crown Prince Mohammed bin Salman met Egyptian President Abdel Fattah el-Sisi in Cairo on Tuesday, days after Houthi forces made significant advances along Yemen's Red Sea coast. Egypt backed Saudi Arabia's right to defend itself and the two sides called for stronger coordination to protect the Red Sea and international shipping routes. Egypt's Foreign Ministry has gone further in defining the relationship, saying Saudi security is inseparable from Egyptian national security and condemning attacks that threaten navigation through the Red Sea.
The urgency has increased because the Houthis are no longer simply threatening vessels from launch sites deeper inside Yemen. Their recent advance along Yemen's western coastline has strengthened their position around the southern Red Sea and the approaches to Bab el-Mandeb, the narrow passage between Yemen and the Horn of Africa connecting the Red Sea with the Gulf of Aden. Reuters reported that the advance has given the Iran-aligned movement greater leverage over shipping and energy flows at a time when Saudi Arabia is also facing attacks against its infrastructure.
Why Egypt sees Saudi security as its own
Geography explains much of the emerging alignment. Bab el-Mandeb and the Suez Canal sit at opposite ends of the same maritime artery: instability at the southern entrance can sharply reduce traffic reaching Egypt's canal even if Egyptian territory itself remains secure. Andreas Krieg of King's College London told Al Jazeera that Cairo increasingly views the area from Suez to Bab el-Mandeb as a single security space, because disruption at the southern gateway costs Egypt shipping traffic, foreign currency and strategic influence.
Egypt has already experienced that vulnerability. Houthi attacks on commercial vessels during the Gaza conflict pushed shipping companies toward the much longer route around Africa's Cape of Good Hope, cutting Suez traffic and depriving Cairo of billions of dollars in canal revenue. The current crisis is especially sensitive because Saudi oil redirected toward the Red Sea can also move north through the Suez Canal or Egypt's SUMED pipeline system, linking Saudi energy security even more closely to Egyptian economic interests.
That means Cairo does not need a Saudi request for solidarity to conclude that Houthi control over strategic portions of Yemen's Red Sea coast is an Egyptian problem. A sustained ability to threaten Bab el-Mandeb could weaken Suez revenues, raise insurance costs, divert shipping and diminish Egypt's role as the bridge between Asian and European trade. It could also give an Iran-aligned armed movement significant influence over a route Cairo regards as central to its national security.
Saudi Arabia faces an equally difficult calculation. The kingdom is confronting Houthi missiles and drones while trying to protect oil infrastructure and alternative export routes at a time of wider regional instability. AP reported that Riyadh has approached allies including Egypt, Pakistan, Britain and France as pressure on missile-defence resources increases, although no country cited in the report had publicly committed combat forces.
What Egypt could realistically provide
The most likely Egyptian contribution is therefore substantial but carefully bounded. Egypt possesses one of the region's largest militaries, a significant navy and direct access to both the Mediterranean and Red Sea, but its most immediately useful contributions would not require sending large ground forces into Yemen. Maritime patrols, intelligence sharing, surveillance, naval coordination, protection of shipping lanes and greater monitoring of the Red Sea approaches could all strengthen the Saudi position without making Egypt a direct participant in Yemen's land war.
Egypt is already part of a Saudi-led Red Sea maritime security grouping created as fears grew that simultaneous pressure around Bab el-Mandeb and the Strait of Hormuz could threaten regional trade. The coalition has been described as defensive and has not launched military operations against the Houthis. Analysts therefore expect Saudi-Egyptian cooperation to concentrate initially on maintaining freedom of navigation rather than opening a new offensive front.
Cairo can also provide something Riyadh cannot obtain from air-defence interceptors alone: Arab political weight. Egypt remains a central diplomatic and military actor in the Arab world, and visible Egyptian backing can help Saudi Arabia frame Red Sea security as a wider regional interest rather than a bilateral Saudi-Houthi confrontation. Analyst H.A. Hellyer told The Washington Post that Riyadh was unlikely to seek Egyptian ground troops but could benefit from Cairo building political support among Arab governments for measures against Houthi threats to Bab el-Mandeb.
This distinction matters. Egypt can become deeply involved in Red Sea security without becoming deeply involved in the Yemen war. It can help defend maritime routes, coordinate naval deployments, exchange intelligence and support Saudi air and maritime awareness while maintaining diplomatic pressure for a negotiated Yemeni settlement.
Why Egyptian troops in Yemen remain unlikely
History gives Cairo a powerful reason for restraint. President Gamal Abdel Nasser sent tens of thousands of Egyptian troops into North Yemen's civil war during the 1960s, an intervention that became costly in both lives and resources and remains embedded in Egyptian strategic memory. Krieg said that experience taught Egypt how an apparently limited operation in Yemen could quickly become a strategic trap.
Today's Egyptian leadership has additional reasons to avoid repeating it. Egypt faces its own economic pressures and security commitments, including instability in neighbouring Sudan, Libya and the Horn of Africa. A ground intervention against the Houthis would expose Egyptian forces to an experienced movement equipped with missiles, drones and years of battlefield experience, while potentially widening confrontation with Iran and its regional partners.
There is also little evidence that Riyadh currently wants Egypt to assume responsibility for fighting the Houthis on Yemeni territory. Saudi Arabia spent years leading a military coalition in Yemen without achieving a decisive defeat of the movement, and the renewed Houthi advance illustrates how difficult a purely military solution remains. Egypt and Saudi Arabia instead used their latest talks to reiterate support for a comprehensive and sustainable political settlement to Yemen's conflict.
The humanitarian consequences would also weigh heavily on any decision to expand the war. AP reported on Thursday that more than 125,000 Yemenis have been displaced by renewed fighting, including tens of thousands of children, while Yemen remains burdened by years of conflict, poverty and humanitarian need. A broader regional intervention could further intensify displacement without guaranteeing that the Houthis could be quickly pushed away from strategic coastal areas.
The line Cairo is most likely to draw
Egypt's probable red line is therefore easier to understand by separating defending the Red Sea from invading Yemen. If Houthi operations threaten international shipping, Bab el-Mandeb, Egyptian-linked maritime infrastructure or the approaches to the Suez Canal, Cairo has strong strategic reasons to participate in surveillance, naval protection and coordinated regional deterrence. A direct threat to Egyptian vessels or territory would increase pressure for an even stronger response.
But sending substantial Egyptian ground forces into Yemen to retake territory for the Saudi-backed Yemeni government would represent a much larger decision. Nothing publicly announced after the Sisi-Mohammed bin Salman talks indicates Cairo has agreed to such a role. The available evidence instead points toward deeper security coordination accompanied by continued support for a political settlement.
There is another complication: Egypt must manage relationships with several Gulf powers whose interests are not always identical. Cairo maintains exceptionally important economic ties with the United Arab Emirates while becoming more closely aligned with Riyadh on regional security. Differences among Saudi Arabia, the UAE and their respective partners in Yemen and elsewhere mean Egypt has an incentive to avoid turning Red Sea cooperation into an exclusive alliance against another Arab state.
That makes a multilateral maritime framework particularly useful. Egypt can argue that protecting Bab el-Mandeb and the Red Sea serves Saudi Arabia, Egypt, Gulf energy exporters, European and Asian importers and the wider international trading system simultaneously. Such an approach also allows Cairo to cooperate with Riyadh without assuming responsibility for Yemen's political future.
The emerging Saudi-Egyptian alignment is consequently significant, but its significance should not be measured by whether Egyptian soldiers enter Yemen. The more consequential development may be Cairo's growing acceptance that security from the Suez Canal to Bab el-Mandeb cannot be separated into individual national problems. If that view becomes embedded in Egyptian strategy, intelligence sharing, naval coordination and joint maritime planning with Saudi Arabia could persist well beyond the current crisis.
For Riyadh, Egypt cannot by itself eliminate the Houthi threat or replace depleted missile interceptors, American intelligence or a political settlement in Yemen. What Cairo can provide is geography, naval capacity, intelligence cooperation, diplomatic influence and a major Arab partner with an unusually direct economic interest in preventing the Red Sea from becoming permanently insecure.
That is likely to define how far Egypt will go: far enough to help Saudi Arabia defend the Red Sea and keep Bab el-Mandeb open, but — unless Egyptian territory or vital interests face a dramatically greater direct threat — probably not so far as to become trapped in another ground war in Yemen. This is an analytical assessment based on current public positions and expert assessments rather than an announced Egyptian military commitment.