Houthi Strikes Expose Saudi Air Defense Gaps

Houthi attacks on Riyadh's King Khalid International Airport on October 8, 10 and 11 killed at least 16 people. An October 13 attack damaged an administrative building at Saudi Aramco's headquarters in Dhahran. Saudi forces intercepted numerous incoming weapons, but others hit their targets despite the billions of dollars the kingdom has spent on air defenses.

The deadliest airport strike came on October 10. It killed 12 people and injured 309. On October 13, debris from intercepted cruise missiles injured four people and damaged 15 homes in Riyadh, Saudi Civil Defense said.

A layered threat

Saudi Arabia operates American-made Patriot missile batteries and Terminal High Altitude Area Defense, or THAAD, designed to intercept ballistic missiles at high altitude. The kingdom's first THAAD battery became operational in July 2025, the Saudi Press Agency said. But ballistic missiles aren't the only threat. Cruise missiles can fly low and evade radar detection until late in flight, while drones may be smaller, slower and much cheaper than the missiles used to shoot them down.

Regional officials told the Associated Press that investigators believe drones were launched ahead of cruise and ballistic missiles in the recent airport attack. They haven't confirmed that sequence. If confirmed, it would suggest an effort to stretch Saudi defenses by sending different threats in quick succession. Defenders must identify each weapon, select an interceptor and act before impact.

A 2020 Center for Strategic and International Studies study, “The Missile War in Yemen,” documented the Houthis' growing arsenal of missiles and drones, developed with Iranian assistance, and repeated attacks on Saudi territory. The study's findings provide context for a campaign that puts airports, homes and energy infrastructure at risk.

Coverage, cost and coordination

Saudi Arabia covers nearly 2.15 million square kilometers, about 78 times the combined land area of Israel and the West Bank. Its cities, airports, refineries, oil fields, military bases and ports stretch across vast distances. Israel's smaller area allows some systems to cover multiple population centers or installations, while Saudi Arabia must distribute equipment more widely. Sparsely populated desert doesn't need the same protection as cities and oil facilities.

Low-flying weapons pose a particular challenge. After the September 2019 attacks on the Abqaiq and Khurais oil facilities, Washington Institute for Near East Policy researchers Michael Knights and Conor Hiney examined gaps in Saudi radar coverage and coordination. The weapons appeared to approach from the north, while much of Saudi Arabia's defenses faced east. Terrain, Earth's curvature and limits of individual sensors can create radar blind spots.

Knights and Hiney recommended better coordination among existing radars, command systems and interceptors, rather than relying only on more missile batteries. The Financial Times reported that week that Saudi Arabia was struggling with interceptor shortages and continuing radar-coverage gaps. In an April 2026 BBC interview, Dr. Sidharth Kaushal of Britain's Royal United Services Institute discussed Gulf interceptor-stock depletion and the difficulty of replacing stocks quickly. Cost compounds the problem: a cheap drone can force defenders to fire an interceptor worth hundreds of thousands or even millions of dollars.

Israeli systems and uncertain cooperation

Israeli defenses are designed for different aerial threats, but no single system covers every Saudi vulnerability. Iron Dome was developed for short-range rockets; upgrades have expanded its ability to engage drones and cruise missiles. Its batteries could protect individual sites, though their coverage is too limited to defend much of the kingdom. David's Sling is designed against cruise missiles, certain ballistic missiles, aircraft and drones. Arrow 2 and Arrow 3 are intended mainly for ballistic missiles; Arrow 3 can intercept suitable targets outside the atmosphere. None would solve the challenge of detecting a small drone approaching an airport at low altitude.

Other Israeli options include Rafael's mobile SPYDER system, designed to engage aircraft, drones and cruise missiles, and Israel Aerospace Industries' Barak MX, which uses different interceptors against aircraft, drones, cruise missiles and some ballistic threats. Either could complement Saudi defenses around oil facilities, airports or military bases if integrated into the kingdom's command and radar networks.

In May, U.S. Ambassador to Israel Mike Huckabee confirmed Israel had sent Iron Dome batteries and personnel to help defend the UAE against Iranian attacks. Reports have described Saudi-Israeli discussions about intelligence-sharing through American military channels, but neither government has confirmed an arrangement. Saudi political analyst Abdulaziz Alshaabani said, “Any intelligence coordination would likely remain limited and pragmatic, while Riyadh continues to rely primarily on its own security mechanisms and broader regional frameworks.”

Saudi Arabia has said diplomatic relations with Israel depend on establishing a Palestinian state. No Saudi agreement to buy Israeli missile defenses has been publicly announced, and there's no official confirmation that negotiations are underway. Meanwhile, Reuters reported Saudi Arabia stopped issuing public warnings of imminent attacks after September 29, leaving residents without official alerts before the deadly airport strikes. Warnings later resumed, including Saudi Civil Defense alerts for Riyadh and Al-Kharj on October 14.