Ship-based system shoots down dummy missile from about 100 miles away . Aegis Ballistic Missile Defense has More than 80 successful tests in 19 tries , agency says . 23 the U.S. Missile Defense Agency ships eventually will be equipped with system .
Ship-based system shoots down dummy missile from hundreds of miles away . Aegis Ballistic Missile Defense has 19 successful tests in 23 tries , agency says . More than 80 U.S. Navy ships eventually will be equipped with system .