PHALANX Counter rocket, artillery, and mortar, abbreviated C-RAM or counter-RAM, is a set of systems used to detect and/or destroy incoming rockets, artillery, and mortar rounds in the air before they hit their ground targets, or simply provide early warning.

The intercept capability of C-RAM is effectively a land version of weapons such as the Phalanx CIWS radar-controlled rapid-fire gun for close-in protection of vessels from missiles; either weapon system also uses a camera to allow a defender to visually identify these target threats before engaging the targets.

Naval Phalanx systems fire tungsten armor-piercing rounds, the C-RAM uses the 20mm (high-explosive incendiary tracer, self-destruct) ammunition. These rounds explode on impact with the target, or on tracer burnout, thereby greatly reducing the risk of collateral damage from rounds that fail to hit their target.