The Ground-based Midcourse Defense (GMD) is the United States’ homeland missile defense system, designed to protect all 50 states from a limited long-range ballistic missile attack. A global system, GMD and its associated elements span 15 time zones. These elements include Ground-based Interceptors (GBIs) at two locations: Ft. Greely, Alaska, and Vandenberg AFB, CA. GMD integrates … Continue reading Ground-based Midcourse Defense (GMD) System