Ship-based system shoots down dummy missile from hundreds of miles away . The United States successfully tested a sea-based component of its missile defense shield Thursday evening , intercepting a ballistic missile with a dummy warhead over the Pacific Ocean , the U.S. Missile Defense Agency said . Comment: More than 80 U.S. Navy ships eventually will be equipped with system .
Ship-based system shoots down dummy missile from hundreds of miles away . Comment: More than 80 U.S. Navy ships eventually will be equipped with system .