Houthis Declare Maritime Embargo Against Saudi Arabia, Threatening Red Sea Trade

The Houthis have declared an immediate maritime embargo against Saudi Arabia, formalising the collapse of the UN-sponsored 2022 truce and reactivating the Red Sea pressure front. This move threatens international trade passing through the Strait of Bab al-Mandab, with four ships attacked in late July. The Houthi Humanitarian Operations Coordination Centre warned shipping companies against loading or discharging cargo at Saudi ports, claiming military targeting would result.

The Houthis seek to improve the Islamic Revolutionary Guard Corps' (IRGC) bargaining position by disrupting the primary regional bypass from Hormuz and demonstrating that Tehran still retains high-impact escalation options. They also aim to restore coercive leverage over Riyadh and deflect domestic pressure by framing the conflict as one between them and Saudi Arabia rather than an armed rebel group versus the Yemeni government.

The Houthi move has expanded the systemic effects of Iran's horizontal escalation from Hormuz to Bab al-Mandab, redistributing the pain of conflict in a way that increases economic and geopolitical costs for US strategic partner Saudi Arabia. Energy markets reacted quickly, with Brent crude oil prices rising above $99 per barrel on 23 July before falling.