Executive summary: After five years of war against the Saudi-led coalition and its allies, Yemen’s Houthi rebels remain defiant and are once again on the offensive. The Houthis’ keen understanding and consistent application of the algebra of insurgency are fundamental to their martial success in Yemen. Ironically, the greatest threat to the Houthi leadership may be peace. Peace will bring internal tensions within the Houthi leadership and growing discontent among the Yemeni people to the fore.
