Iran-Saudi Arabia Regional Conflict and Geopolitical Tensions: Military Operations and Proxy Conflict

The conflict escalated in early September 2026 as Iran-backed Houthis launched ground and rocket attacks near the Bab al-Mandab Strait, killing over 120 people. Fighting intensified in southwestern Yemen, resulting in over 60 casualties among government troops and Houthi rebels. This violence followed the collapse of a 2022 ceasefire and was exacerbated by the arrival of an Iranian plane in Sanaa in July 2026. The Houthis subsequently targeted Saudi Arabia, injuring 73 civilians in strikes on oil and military infrastructure. Saudi Arabia attributed these attacks to its own prior '121 attacks' in Yemen, while Egypt condemned the Houthi strikes. Iran directly entered the conflict on September 9 by launching ballistic missiles at a US base in Jordan, which Jordanian defenses largely intercepted. Simultaneously, Houthi forces struck Saudi cities, causing Brent crude prices to rise. The Houthis then executed a coordinated campaign to seize the Bab al-Mandab Strait, capturing the port city of Mocha and advancing toward the strategic chokepoint. By September 11, they had seized Perim Island and the town of Dhubab, effectively controlling key maritime access points alongside Iran's control of the Hormuz Strait. Saudi-backed Yemeni forces retaliated against Houthi positions in captured port cities, but the rebels continued their advance. On September 14, fighting renewed in Yemen as government forces launched counterattacks, while Iran denied direct interference. The Houthis captured two additional strategic Red Sea islands, further disrupting global shipping routes. Analysts warned of an impending oil supply crisis as the rebels seized the Greater and Lesser Hanish islands near the Bab al-Mandab strait on September 15. Diplomatic tensions intensified as the Yemen Interior Minister accused Iran of militarizing the Bab al-Mandab Strait through the Houthis on September 17. Iran rejected accusations that the Houthis targeted Mecca, labeling the claim a 'false flag' operation. By late September, Iran downplayed its role in the Houthis' military advances, despite evidence of the rebels deploying modified Iranian cruise missiles. The conflict remains active, with the Houthis maintaining control over critical Red Sea islands and coastal areas, threatening global energy security and maritime trade.