Yemen's internationally recognised government forces said on Sunday, 13 September 2026 that more than 500 soldiers were killed and approximately 1,500 others wounded during a month-long Houthi offensive along the country's western coast. The fighting, which targeted the strategically critical Bab al-Mandab Strait, has dramatically redrawn front lines across Hodeidah and Taiz provinces since early August.

Scale of the Casualties

According to a statement carried by Al-Joumhouriya TV, the government's National Resistance Forces recorded these losses between 9 August and 10 September. The same statement claimed that more than 1,000 Houthi fighters were killed and thousands more wounded during the same period. The figures have not been independently verified.

The statement said the conflict began with Houthi missile, drone, and explosive-boat attacks before expanding from Hays in the southern part of the Red Sea province of Hodeidah into several fronts in the neighbouring southwestern province of Taiz.

The Houthi Sweep: Key Territorial Gains

A sweeping Houthi offensive launched on 3 September rapidly altered the battlefield along Yemen's Red Sea coast. Among the most significant territorial gains:

The Houthis captured the strategic port city of Mocha on Thursday, before pushing south on Friday into the Bab al-Mandab area and seizing Mayun Island at the heart of the strait. Control of Mayun tightens the Houthi grip on this vital shipping chokepoint connecting the Red Sea with the Gulf of Aden — one of the world's busiest maritime corridors, through which an estimated 10–15% of global trade passes.

Houthi forces subsequently advanced farther south toward Lahj province, where retreating government forces had regrouped — bringing the fighting dangerously close to Aden, the seat of Yemen's internationally recognised government.

Prison Seizure and Prisoner Release

During the rapid advance, Houthi forces reportedly stormed a government-run prison following the capture of Mocha. A Houthi military official, speaking on condition of anonymity, said 210 Houthi members previously held by government forces were freed from the facility.

'Before retreating, the mercenary forces gathered all 210 prisoners in a large hall and locked them inside,' the official said, using the term 'mercenary forces' to refer to government troops. 'Our fighters broke into the facility and freed them.'

Strategic Implications for the Region

The Houthi advance comes amid a broader context of regional instability. The group's increasing control over the Bab al-Mandab Strait — already a flashpoint due to prior Houthi attacks on commercial shipping — raises fresh concerns for global maritime trade and neighbouring countries including Saudi Arabia, Djibouti, and Eritrea. This is not the first time the Houthis have targeted this chokepoint; the group's drone and missile campaign against Red Sea shipping drew international naval responses earlier in the conflict cycle.

With government forces now reportedly regrouping near Lahj, the coming days will determine whether Aden itself comes under direct military pressure.