CEP Non-Resident Fellow Ari Heistein writes: "Recent reports from the U.S. intelligence community and other sources indicate that Houthi activity along the Horn of Africa is increasing. The northeastern tip of the African continent has long been a hub for trafficking and piracy, but emerging Houthi-al-Shabaab cooperation presents a growing threat to regional stability. This partnership highlights the risk of Sanaa’s collaboration with criminal and terrorist organizations beyond Yemen and, over time, could serve as a model for future Houthi activities abroad."