What is a Missile defence system?

A missile defense system is a technology designed to detect, track, and intercept incoming ballistic missiles or other aerial threats before they can reach their intended targets. These systems typically use a combination of radar, sensors, and interceptor missiles to neutralize threats in various phases of flight. They are employed by countries to enhance national security and protect critical infrastructure from potential missile attacks. Notable examples include the U.S. Ground-based Midcourse Defense (GMD) and the Israeli Iron Dome.