The 20mm Phalanx CIWS has proven itself in its land based version, which has been used to defend against rocket, mortar, and missile attacks on bases. The anti

The 20mm Phalanx CIWS has proven itself in its land based version, which has been used to defend against rocket, mortar, and missile attacks on bases. The anti missile missiles on carriers such as the RIM-7 and RIM-116 have not been tested in actual combat though. Carriers usually carry a bunch of these, and are usually surrounded by other ships armed with them as well