Naval vessels have been equipped with Chaff, a radar countermeasure system using metal projectiles to confuse and distract anti-ship missiles, Navy Commander Rear Admiral Habibollah Sayyari announced. The commander also told Tasnim News Agency on Saturday the Chaff system has been installed on all missile-launching warships and destroyers, including Damavand. He said the anti-missile system became operational after undergoing successful tests. Chaff is a radar countermeasure in which the target—a ship or an aircraft—spreads a cloud of small, thin pieces of aluminum or other material, which either appears as a cluster of primary targets on radar screens or swamps the screen with multiple returns. The steel shower comprises radar-reflective metal that confuses the missile. Iranian military experts have in recent years made headways in manufacturing a broad range of indigenous equipment, making the armed forces largely self-sufficient in the arms sphere.