A Missile Defense System is a technology designed to detect, track, and intercept incoming missiles before they can reach their targets. These systems use various methods, including radar and satellite tracking, to identify threats and launch interceptors to neutralize them. They are primarily developed to protect against ballistic missiles, which are launched from long distances. There are different types of missile defense systems, such as Ground-based Midcourse Defense (GMD) and Aegis Ballistic Missile Defense. Each system has unique capabilities and is often deployed by countries to enhance national security. The effectiveness of these systems can vary based on technology and the nature of the threat.