Houthis advance toward Bab el-Mandeb, straining Treasury sanctions

Key Points:

• The Iran-backed Houthis have rapidly advanced along Yemen’s Red Sea coast, seizing strategic ports like Mocha and expanding toward the Bab el-Mandeb Strait, a critical chokepoint for global maritime trade and energy shipments.
• The group operates a complex financial network spanning Yemen and international hubs, involving port fees, tariffs, Iranian oil shipments, informal hawala systems, cryptocurrency exchanges, and foreign facilitators in Russia, Turkey, and Southeast Asia.
• Despite U.S. Treasury efforts to cut off funding to the Houthis and their Iranian backers, the group has adapted to sanctions by generating significant revenue domestically through customs, taxes, and oil sales, estimated at over $2 billion annually.
• The Houthis are deepening ties with Russia and China, with Russia providing support and petroleum products, while Chinese private actors and companies are involved in supply chains and technology aiding Houthi military capabilities, though direct Chinese government involvement remains unproven.
• Washington faces a difficult challenge in disrupting Houthi finances without worsening Yemen’s humanitarian crisis, as the group controls key ports essential for civilian access to food, fuel, and aid, highlighting the broader problem of sanction evasion by decentralized illicit financial networks globally.