Great video of the super deadly US Navy Phalanx gating gun in a live fire exercise. The Phalanx CIWS is a close-in weapon system for defence against anti-ship .br Great video of the super deadly US Navy Phalanx gating gun in a live fire exercise. The Phalanx CIWS is a close-in weapon system for defence against anti-ship .br SUPER DEADLY US Navy Phalanx CIWS Gatling Gun live fire exercise Great video of the super deadly US Navy Phalanx gating gun in a live fire exercise.br SUPER DEADLY US Navy Phalanx CIWS Gatling Gun live fire exercise.