Early warning radar is a type of radar system designed to detect incoming threats, such as missiles or aircraft, at long distances. It operates by sending out radio waves that bounce off objects in the air, allowing operators to track their speed and direction. This technology is crucial for national defense, providing timely alerts to military forces. These radar systems are often integrated with other defense systems to enhance situational awareness. They can be used in various environments, including land, sea, and air, and are essential for protecting critical infrastructure and civilian populations from potential attacks.