On January 15, French forces seized a shipment of Iranian-supplied weapons headed for Yemen's Houthi rebels. The seized shipment contained more than 3,000 assault rifles, 500,000 rounds of small-arms ammunition, and 20 antitank guided missiles. The naval operation took place off the coast of Yemen and was coordinated with the U.S. military. In a separate action, Yemeni security forces seized 100 drone engines headed for Houthi militants.