Houthi militants controlling northwestern Yemen have launched recent attacks on key Saudi targets, exposing vulnerabilities in the kingdom's security infrastructure. Over the past week, the group struck Riyadh’s international airport and the headquarters of Saudi Aramco, the world’s largest oil company, demonstrating the Houthis’ growing capacity to threaten critical Saudi assets.
These attacks challenge the kingdom’s image as a stable environment for international investment, a status Saudi Arabia has sought to reinforce while working to diversify its economy beyond oil. Experts attribute the Houthis’ enhanced military capabilities to several converging factors, including sustained support from Iran, depletion of regional missile defenses, and increasing operational experience.
Iran has reportedly provided the Houthis with weapons, funding, and training for over a decade, although Iranian officials deny direct arms transfers in violation of United Nations embargoes. Analysts describe a process in which the Houthis, aided by Iran’s Islamic Revolutionary Guard Corps and Hezbollah operatives from Lebanon, have developed an indigenous capacity to manufacture and deploy advanced drones and missile systems. This self-sufficiency effort is reinforced by former Yemeni military engineers and locally trained specialists, establishing a resilient military-industrial base that remains functional even if Iranian supply routes are disrupted.
One Iranian security adviser suggested this approach was strategic, aiming to insulate Houthi military capabilities against potential interdiction. “Iran has basically taught the Houthis how to fish,” the source commented, highlighting the group’s ability to assemble dual-use components into functioning drones and ballistic missiles.
The Saudi-led coalition fighting the Houthis reports intercepting numerous missile attacks targeting Saudi cities, and claims to have destroyed 127 weapons storage and launch sites belonging to the Houthis. A coalition spokesperson noted the group’s acquisition of sophisticated weapons technologies, including ballistic missiles, drones, and fast boats laden with explosives, with assistance from unspecified “regional actors.”
In addition to Iranian support, the Houthis have diversified their weapons supply chain. According to a recent report from Conflict Armament Research, the group attempted to manufacture medium-range ballistic missiles using components sourced from China, after the internationally recognized Yemeni government intercepted one such shipment. This diversification process also includes experimentation with artificial intelligence to enhance weapon guidance, with reports indicating that AI software has been developed to support rockets and missile systems capable of extended range and incorporating hypersonic glide vehicle technology.
Saudi Arabia’s air defense capabilities have come under strain amid the broader regional conflict, particularly following a sharp increase in missile and drone attacks since the U.S. and Israel launched operations against Iran earlier this year. The depletion of missile interceptors, used to protect U.S. bases and allied states, has further exposed gaps in Saudi defenses. Experts note that despite Saudi Arabia’s substantial military resources, its integrated air defense network remains less advanced than those of Israel or Ukraine, making it challenging to provide comprehensive protection across the kingdom’s vast territory.
The ongoing conflict has been shaped by years of warfare and shifting alliances. The Yemeni civil war, which has pitted the Houthis against Saudi-backed Yemeni forces since 2014, stabilized somewhat with a ceasefire in 2022 but escalated following Israel’s military actions in Gaza in 2023. The Houthis responded by firing rockets toward Israel and targeting maritime routes in the Red Sea. Renewed hostilities following the U.S.-Iran confrontations earlier this year have further fueled the conflict, during which the Houthis have continued to refine their military technologies and expand their supply networks.
Observers emphasize that the Houthis have not remained static, instead leveraging operational experience and diversified logistics to enhance the sophistication and reach of their weaponry, thereby presenting an increasingly complex security challenge for Saudi Arabia and its allies in the region.