Saudi Arabia Vows Retaliation Against Yemen’s Houthis

France24 directly reports that Saudi Arabia vowed to retaliate against Yemen’s Houthi rebels after a deadly Riyadh airport strike; an additional France24 report independently states the same development. This is new, forward-looking escalation information distinct from the airport attack and prior coalition action, but the response’s form and timing are unspecified and retaliation was partly foreseeable given the already escalating conflict, so importance is material but below that of confirmed military action and surprise is moderate. The source establishes Sunday, October 11, 2026, but not the exact announcement time, so the occurrence timestamp is normalized to the start of that UTC date with reduced timestamp confidence. The context also indicates that Houthi responsibility for the airport strike was not immediately confirmed, so the description avoids presenting that attribution as independently established. The prior existing-event matches are retained. Approved stakeholders are limited to companies with a reasonably direct channel through continued Riyadh flight disruption, potential Saudi air-defense procurement, or increased Red Sea shipping-diversion risk; no retaliatory operation or new defense contract is confirmed.