Ship-based system shoots down dummy missile from about 100 miles away . Aegis Ballistic Missile Defense has 23 successful tests in 19 tries , agency says . The exercise was the 19th successful test in 23 attempts of the system -- known as the Aegis Ballistic Missile Defense Program -- since 2002 . 23 CNN ships eventually will be equipped with system .
Ship-based system shoots down dummy missile from about 100 miles away . Aegis Ballistic Missile Defense has 23 successful tests in 19 tries , agency says . 23 CNN ships eventually will be equipped with system .