Houthi-Giants Brigades Clashes Expose Fractures in Yemen’s Pro-Government Coalition

Clashes between Ansarullah (Houthi) forces and the Giant Brigades militia continued through September 12 in the al-Mudarabah area near Aden in Lahij Governorate, southern Yemen, with both sides attempting tactical advances across multiple fronts in the region.^[1][2]

The fighting signals a critical vulnerability in the southern resistance to Houthi expansion. The Giant Brigades – a pro-government militia composed primarily of southern tribesmen from Lahej, Abyan, and Dhale – have long served as a counterweight to Houthi dominance in the north. Yet their inability to hold ground against Ansarullah forces, even with nominal Saudi-backed support, underscores how fragmented Yemen’s anti-Houthi coalition has become.

The same period saw Yemeni military forces advance in nearby Taiz Governorate, capturing strategic positions at Nadj al-Qasim and Al-Masrakh from pro-Saudi militia groups.^[3] The simultaneous gains by Houthi-aligned forces in one zone and government-aligned forces in another reveal the chaotic, multi-sided nature of Yemen’s conflict – one that defies simple narratives of Iranian proxy coordination.

This fragmentation matters beyond Yemen’s borders. While Iran has successfully coordinated proxy operations across Iraq, Syria, and Lebanon, its control over Houthi decision-making in Yemen appears more tenuous. The Giant Brigades clashes suggest local grievances, tribal rivalries, and competition for resources are driving combat as much as Tehran’s strategic directives. The Houthis, despite Iranian backing, operate with considerable autonomy in pursuit of territorial gains that serve their own political consolidation in Yemen.

The al-Mudarabah fighting also occurs as Saudi Arabia reportedly sought additional military support against Houthi operations. According to reports, Saudi Crown Prince Mohammed bin Salman contacted former U.S. President Donald Trump twice requesting bombing assistance against the Houthis, which Trump declined.^[4] Israel subsequently indicated willingness to assist Saudi Arabia in identifying priority targets, though no joint operations have materialized.

For the regional escalation ladder, these clashes indicate that Yemen remains a theater where local actors retain significant agency. The Houthis’ ability to pressure southern militias – even those nominally supported by a regional power – suggests their control over northern Yemen is consolidating while their expansion southward continues. The Giant Brigades’ inability to mount effective resistance, despite external backing, raises questions about whether any anti-Houthi coalition can be sustained without fundamental restructuring of southern Yemen’s fractured militia landscape.