How US Protects Its Bases Against Iran’s Drone Attacks

The C-RAM (Counter-Rocket, Artillery, and Mortar) defense system, also known as the Centurion Weapon System, serves as a vital shield for US military bases and forward positions. It originated from the naval Phalanx close-in weapon system and was adapted for land use during operations in Iraq and Afghanistan. This automated platform uses advanced radar to rapidly detect incoming short-range threats like rockets, artillery shells, mortars, and even some drones. Once a projectile is tracked, the system calculates its trajectory in seconds and unleashes a barrage from a 20mm Gatling gun firing up to 4,500 rounds per minute. It employs special high-explosive, self-destructing ammunition that fragments on impact or after burnout, minimizing risks to nearby troops and civilians from missed shots or falling debris.

Compared to other US systems like Patriot or THAAD, C-RAM stands out for its exceptional suitability against low-cost, indirect fire threats common in asymmetric conflicts. Systems such as Patriot excel at longer-range ballistic missiles but prove overly expensive and less efficient for frequent, short-range barrages, where each interceptor costs millions. C-RAM delivers point defense at a fraction of the cost per engagement, relying on inexpensive ammunition rather than costly missiles. Its high mobility, quick reaction time, and proven effectiveness in protecting forward operating bases make it far more practical and economical for defending against rocket and mortar swarms than larger, missile-based platforms designed for strategic threats. This focused capability has saved countless lives in high-threat environments.