After more than four decades in service, the Phalanx Close-In Weapon System, or CIWS, has become a well-known defensive ...

The MK-15 Phalanx CIWS provides ships of the U.S. Navy with an inner layer point defense ... Phalanx is the only deployed close-in weapon system capable of autonomously performing its own search ...

The US Navy equips all its surface combat ships with a powerful gun called the Phalanx. This is what it looks like in action. Produced by Eames Yates, Original Reporting by Jeremy Bender.