WASHINGTON — The latest version of the Missile Defense Agency’s Ground-Based Interceptor for homeland missile defense intercepted an Intermediate Range Ballistic Missile in test Monday. The GBI, which is part of the Ground-Based Midcourse Defense (GMD) system designed to defeat possible intercontinental ballistic missile attacks from North Korea and Iran, was launched at Vandenberg Space Force, California. The GMD system is made up of GBIs, the majority of which are positioned in underground