The Saudi-led coalition announced a military operation on Monday targeting Houthi missile infrastructure inside Yemen — four ballistic missile launchers, five storage tunnels, and a missile depot — framing the strikes as supply-line interdiction. Coalition spokesman Turki al-Maliki said the operation also hit fortifications, troop concentrations, and equipment along Yemen's front lines. The language of 'neutralising sources of threat' signals an escalation beyond defensive posture into offensive degradation campaigns. The Houthis responded in kind, or rather had already been responding. The armed group claimed a precision ballistic missile strike on Riyadh's King Khalid International Airport and drone attacks on Saudi oil pumping stations, both announced Monday by military spokesman Yahya Saree. Separately, the Houthis claimed missile strikes against government-aligned forces in Aden and Lahij governorates inside Yemen. The airport attack earlier this month killed 13 people and wounded over 300 — the deadliest strike on Saudi soil in more than a decade — and forced the temporary closure of the kingdom's main international airport, pushing Saudi Arabia's flagship investment conference to 2027. The strategic picture is bleak. A 2022 truce that had frozen most fighting collapsed last month. The Houthis launched a lightning offensive seizing much of Yemen's Red Sea coast, imposed a maritime blockade on Saudi Arabia, and began systematically targeting Saudi energy facilities and airports. The government counteroffensive — 'Operation Yemen Dawn' — is attempting to recapture lost territory, but the Houthis have demonstrated the ability to strike deep into Saudi Arabia with ballistic missiles despite coalition air defences. Greece's role illustrates how far the dependency web extends. Greek Prime Minister Mitsotakis met Crown Prince Mohammed bin Salman on Sunday and agreed to keep a Patriot battery deployed to Saudi Arabia since 2021, protecting energy infrastructure at Yanbu on the Red Sea coast. The fact that Saudi Arabia — the world's largest arms importer — needs a NATO member's air defence system to protect critical energy infrastructure tells you everything about the gap between Saudi military spending and actual defensive capability. Saudi air defences intercepted at least 10 ballistic missiles on Sunday alone, but interception is not invulnerability. Two people were injured by falling debris in the south, buildings were damaged, and the kingdom's press agency released images of shattered facades and glass-strewn streets. The Houthis' explicit warning to travellers to avoid Riyadh airport — calling it a 'military target' — is designed to impose economic costs by suppressing air traffic and investor confidence. The fundamental extraction dynamic is clear: Saudi Arabia's intervention since 2015 has failed to restore the internationally recognised government, the Houthis control the capital and now much of the coast, and the cycle of strikes and counter-strikes is destroying value on both sides while civilians in Yemen and Saudi Arabia bear the costs. There is no diplomatic off-ramp visible. The Houthis are stronger militarily than at any point since the war began, and Saudi Arabia's deterrence model — expensive air defence plus coalition airstrikes — is being stress-tested to its limits. What makes this moment different from earlier phases is the convergence of threats: maritime blockade, deep-strike capability against Saudi cities, territorial gains inside Yemen, and the collapse of the truce framework. The coalition's infrastructure strikes may degrade Houthi launch capacity temporarily, but the group has demonstrated persistent resupply and adaptation over a decade of war. The question is no longer whether this war is winnable but how long the current escalation cycle runs before something breaks — economically, diplomatically, or in terms of civilian casualties.
