Seth G. Jones, Jared Thompson, Danielle Ngo and Brian McSorley
The number of Houthi attacks against predominantly civilian targets in Saudi Arabia doubled over the first nine months of 2021 compared to the same period in 2020, according to new CSIS analysis. Iran’s Islamic Revolutionary Guard Corps-Quds Force and Lebanese Hezbollah have played a critical role in providing weapons, technology, training, and other assistance to the Yemen-based Houthis. In response, the United States needs to provide Saudi Arabia additional aid to defend the country against stand-off attacks.
Iran and Ansar Allah (Partisans of God), better known as the Houthi movement, have conducted a campaign of high-profile attacks against civilian Saudi Arabian and coalition targets in the Gulf, beginning after the Saudi-led intervention in Yemen in 2015.1 On December 6, 2021, for example, Saudi air defenses intercepted a ballistic missile above Riyadh, causing shrapnel to fall in several residential districts. In November 2021, Houthi militants fired over a dozen unmanned aerial vehicles (UAVs) with explosives at several Saudi cities, including oil refineries in Jeddah. Saudi Arabia responded by targeting Houthi weapons depots, air defense systems, and UAV infrastructure in Yemen.2 In September 2021, a Houthi missile struck Saudi Arabia’s Eastern Province, injuring two children and damaging several homes.3 In March 2021, Houthi militants launched multiple UAVs and missiles at the southern city of Jazan, striking a facility of Saudi Arabia’s state-owned oil company, Saudi Aramco (see Figures 1a, 1b, and 1c). Saudi Arabia’s military has also intercepted thousands of Houthi ballistic and cruise missiles, UAVs, and other stand-off weapons.4