The Houthis have accomplished in three weeks what a decade of civil war could not: seizure of Yemen's Red Sea coast, including the port city of Mocha and effective control of the Bab al-Mandab strait. That narrow passage handles 10% of all global maritime traffic, and with Iran already holding the Strait of Hormuz closed, Tehran's proxies now straddle two of the planet's most critical energy corridors. At least 169 people have been killed in the last three days alone, with 700 dead since the offensive began. The fighting centers on the Kahboub mountains near the coast, where Houthis are trying to consolidate gains that would give them a strategic vantage over coastal shipping lanes and further isolate Aden, the government's de facto capital. Government forces claim they've repelled some incursions, but the trajectory is clear: Houthi-affiliated media report continued advances on multiple fronts, including the outskirts of Taiz province and the coastal area of Ras al-Ara. Saudi Arabia has responded with hundreds of airstrikes and artillery barrages across four provinces — Taiz, al-Jawf, Marib, and Saada — with little success in reversing the Houthi advance. The strikes have killed civilians, including two children in Mocha and nine detainees in an al-Jawf prison. Riyadh issued a rare alert in southern Yemen ahead of potential further strikes after Houthis hit the Saudi capital with missiles over the weekend, the first such attacks in years. The geopolitical scramble is revealing. Saudi Crown Prince Mohammed bin Salman has directly asked Trump to strike the Houthis; Trump reportedly considered it over the weekend but pulled back. The UK offered aerial refuelling for Saudi defensive missions — a calibrated step short of direct engagement. The G7 issued a joint statement ahead of the UN General Assembly calling on Iran to stop arming the Houthis and demanding the group cease military operations and return to negotiations. None of these moves have changed facts on the ground. The humanitarian toll is staggering and accelerating. More than 100,000 people have been displaced since the offensive began, with the UN warning displacement could reach 230,000. Some Yemenis are fleeing by sea to Djibouti — the UN expects more than 10,000 could cross if fighting continues. This is layered atop a pre-existing crisis where 22 million people need humanitarian assistance and 5.2 million were already internally displaced before a single shot of this offensive was fired. The strategic logic is straightforward: an Iranian-aligned force now controls both chokepoints through which Saudi oil must pass to reach global markets. The Houthis' Red Sea offensive has upended energy markets already convulsing from the Hormuz closure, compounding the disruption from the US-Iran war now in its seventh month. For Riyadh, this is an existential economic threat dressed in proxy-war clothing. The 2022 UN-brokered ceasefire is dead. The question now is whether any external power — the US, Saudi Arabia, or a broader coalition — is willing to commit the force necessary to reverse Houthi gains, or whether the new territorial reality calcifies into a permanent shift in the region's balance of power. Trump's refusal to strike, despite Saudi entreaties, suggests the answer may already be forming.
