Yemen's civil war has entered a violent new phase, with Houthi rebels making significant territorial gains, Saudi Arabia scrambling for air-defence support and at least 125,000 civilians displaced since the start of September alone. The surge in fighting — which has already claimed more than 500 lives in a single week, compared with roughly 200 the week before — has effectively ended the ceasefire that had broadly held since 2022.
The Houthi movement, which holds large swaths of northern Yemen including the capital Sanaa, has advanced rapidly since early September, seizing the entirety of Yemen's Red Sea coast and strategic islands in the Bab al-Mandab Strait — the narrow waterway connecting the Red Sea to the Gulf of Aden. Ground clashes near the Saudi border continued on Tuesday, with AFP footage showing Yemeni government forces in armoured vehicles pushing across desert terrain in the Al-Jawf region. Operations commander Waleed Al-Mahajeri told an embedded journalist that government troops were advancing on the Al-Labanat front, claiming Houthi fighters were "retreating and fleeing across all fronts." The Houthis, for their part, released their own footage of the fighting and claimed to have shot down a Saudi F-15 fighter jet over the central province of Marib using a locally made surface-to-air missile — a claim Saudi Arabia has not confirmed. If verified, Al Jazeera's Yemen correspondent noted, it could signal "a change in the balance of power" given Riyadh's heavy reliance on air superiority.
The humanitarian toll is mounting rapidly. The UN's Office for the Coordination of Humanitarian Affairs (OCHA) verified 40 civilian casualties between 1 and 14 September, with Taiz province — a city in southwestern Yemen long encircled by conflict — bearing the heaviest burden of the newly displaced. Families have arrived at makeshift camps with almost nothing, some building shelters from wooden branches and plastic sacks. Aid agencies report that damaged roads, restricted access and severe funding shortfalls are hampering relief efforts.
On the diplomatic and military supply front, Saudi Arabia has asked France, Pakistan, Egypt and the United Kingdom to deploy air-defence systems after its own stockpile of missile interceptors has dwindled — a consequence of years of sustained Houthi attacks. The United States, itself short of interceptors after the conflict with Iran, reiterated strong diplomatic backing for Yemen's internationally recognised government while simultaneously holding direct talks with Houthi representatives at the US embassy in Muscat last weekend, with Omani mediation. Sources cited by Reuters said the Houthis told US officials they had no intention of targeting American vessels and remained committed to a 2025 ceasefire with Washington.
The broader strategic stakes extend well beyond Yemen's borders. Houthi strikes on Saudi energy infrastructure — combined with Iraqi militia attacks further north — have threatened the kingdom's oil export routes through both the Bab al-Mandab Strait and the Strait of Hormuz, creating what analysts describe as a potential "double choke point" crisis. Gulf analyst Kristian Coates Ulrichsen notes that Saudi Arabia has little appetite for a new ground offensive given the Houthis' advanced drone capabilities and proven resilience, and is instead seeking to assemble a multilateral maritime coalition — potentially including Turkey and Egypt — to stabilise the Red Sea region. Whether that coalition can take shape quickly enough to reverse Houthi momentum remains deeply uncertain.