The Houthis took Sana'a in September 2014. By early 2015 they had pushed south, driving President Abdrabbuh Mansur Hadi from the capital and then from Aden. For Riyadh, a Zaidi-Shia political-military force controlling most of populated Yemen and allegedly backed by Iran was a strategic nightmare - particularly with the Bab el-Mandeb strait, through which much of Saudi oil passes, so close by. Saudi Arabia assembled a coalition: the UAE, Bahrain, Kuwait, Egypt, Jordan, Morocco, Sudan. The United States provided intelligence sharing, aerial refueling, and munitions sales. Pakistan declined to send troops. The stated goal was to restore Hadi's government. The real operation was a war of attrition, run by air power from Saudi and Emirati jets against a dispersed, mountain-familiar enemy.

Saudi Arabia's southern mountains were not meant to be a front line. Jizan, Najran, and Asir are the Kingdom's agricultural south, terraced and green by Saudi standards, populated by tribes with deep cross-border family ties to Yemen. From 2015 onward, Houthi artillery and rockets reached border towns; Saudi villages evacuated; Katyusha fire damaged schools and homes. A Jordanian warplane went down in Saudi territory in 2015; the pilot survived. Sudanese troops sent as coalition infantry suffered heavy losses - Sudan had enlisted as part of a deal for financial support, and by 2019 Khartoum was quietly pulling most of its forces home, with many widows and maimed veterans left to tell their stories to Sudanese newspapers. On the Yemeni side of the line, Houthi fighters counted their own dead - often young men from Sa'dah or Hajjah governorates recruited for rates of pay that made guerrilla war more attractive than subsistence farming in a wartime economy.

What began with Katyusha rockets across a border escalated, year over year, into a strategic standoff. Houthi engineers - with intelligence, components, and possibly direct Iranian Revolutionary Guard assistance - adapted older missile designs into long-range systems. In 2017 they fired a ballistic missile at King Khalid International Airport in Riyadh. In September 2019 a coordinated cruise missile and drone attack hit the Abqaiq processing facility and Khurais oil field, briefly disrupting Saudi oil output and shaking world markets. Saudi Patriot batteries intercepted many incoming missiles but not all. In the Red Sea, Houthi forces began targeting commercial shipping with anti-ship missiles and drones, raising costs on one of the world's critical shipping lanes. The Saudi air campaign struck Yemeni weapons depots, missile launch sites, and Sana'a itself - and, in incidents documented by UN human rights monitors, weddings, funerals, markets, hospitals, and school buses.

The stories that escape the headlines belong to people who never wanted to be in a war. In Yemen, a cholera epidemic that infected over a million people after 2016. Children born into malnutrition. Humanitarian aid blocked by Saudi-led coalition blockades or by Houthi port regulations, depending on whom you asked. A 2018 air strike hit a school bus in Sa'dah and killed 40 children, some of them still holding UN-branded backpacks. On the Saudi side, farming families in Jizan mountain villages who had evacuated after the first years of rocket fire; expatriate workers in Najran caught in shelter drills; Yemeni civilians living legally in Saudi Arabia accused of sympathies they did not hold. No national boundary fairly separates the Beni Asir of the Saudi highlands from their cousins in the Yemeni mountains; the border has always been a line across one people's geography. The war drew fresh trenches across those family ties.

In April 2022, a UN-brokered truce took hold between the Houthis and the Saudi-led coalition. It held imperfectly. Saudi Arabia and Iran restored diplomatic relations in March 2023, in a deal brokered by China - a development that shifted the regional calculus and made continued war harder to sustain politically. Direct Saudi-Houthi talks gathered pace through 2023 and into 2024, with reports of a framework agreement on border ceasefires, prisoner exchanges, and eventual salary payments to Yemeni government employees in Houthi-held territory. The war did not stop cleanly. From late 2023 the Houthis opened a new front, striking Red Sea shipping in solidarity with Gaza and drawing US and UK counter-strikes into Yemen from 2024. As of 2026, the conflict persists in a lower register - suspended rather than resolved, with the border provinces counting their quiet days while the wider regional picture shifts around them.