The interceptors are part of an integrated system of ground, sea and space-based sensors, ground and sea-based radars and an advanced command and control, battle management and communication system designed to detect and track a hostile ballistic missile, then launch and guide an interceptor to destroy the target warhead before it can reach its intended target in any of our 50 states.  -   Rick Lehner     Quotes
The interceptors are part of an integrated system of ground, sea and space-based sensors, ground and sea-based radars and an advanced command and control, battle management and communication system designed to detect and track a hostile ballistic missile, then launch and guide an interceptor to destroy the target warhead before it can reach its intended target in any of our 50 states. Rick Lehner
 Space