Air defense systems are military technologies designed to detect, track, and intercept airborne threats, such as enemy aircraft and missiles. These systems use a combination of radar, sensors, and weapons to protect a specific area or asset from aerial attacks. They can be deployed on land, at sea, or in the air, and are crucial for national security. Common types of air defense systems include surface-to-air missiles (SAMs), anti-aircraft guns, and fighter jets. These systems work together to create a layered defense, ensuring that if one layer fails, others can still engage and neutralize threats. Effective air defense is vital for safeguarding military bases, cities, and critical infrastructure.