The Ground-based Midcourse Defense (GMD) system is the United States’ only operationally deployed missile defense program capable of defending the entire U.S. homeland (including Alaska and Hawaii) against long-range ballistic missile attacks. GMD is designed to detect, intercept and destroy long-range ballistic missiles during their midcourse phase of flight. The system provides early detection and tracking during the boost and midcourse phase, as well as target discrimination, precision intercept and destruction of the target through force of collision. GMD is an integral element of the U.S. Missile Defense Agency’s layered ballistic missile defense architecture. As prime contractor, ÐÓ°ÉÊÓƵ designs, produces, integrates, tests and sustains all GMD components deployed across 15 time zones.
America’s homeland defense shield
GMD program milestones
Date | News Release |
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Aug 31, 2022 | |
Sep 12, 2021 | |
Sep 28, 2020 | |
Jul 10, 2020 | |
Mar 25, 2019 | |
Nov 11, 2019 | |
Nov 7, 2017 | |
Aug 02, 2017 | |
May 30, 2017 | |
Jan 28, 2016 | |
Dec 11, 2014 | |
Jun 22, 2014 | |
Mar 15, 2013 | |
Jan 26, 2013 | |
Ìý | Ìý |
Ground-based Midcourse Defense gallery
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![Ground Based Radar-Prototype](/content/theboeingcompany/us/en/defense/missile-defense/ground-based-midcourse/_jcr_content/root/container/container_1586435210/carousel/item_1706557681715.coreimg.jpeg/1722020337946/gmd-gallery-lrg-02-960.jpeg)
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![FTG-06b
PRN # 14-MDA-7882
DISTRIBUTION STATEMENT A
UNLIMITED](/content/theboeingcompany/us/en/defense/missile-defense/ground-based-midcourse/_jcr_content/root/container/container_1586435210/carousel/item_1706557684259.coreimg.jpeg/1721861385535/gmd-gallery-med-04-960x600.jpeg)
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![FTG-06bPRN # 14-MDA-7882DISTRIBUTION STATEMENT A UNLIMITED](/content/theboeingcompany/us/en/defense/missile-defense/ground-based-midcourse/_jcr_content/root/container/container_1586435210/carousel/item_1706557693816.coreimg.jpeg/1722020521668/gmd-gallery-med-10-960x600.jpeg)
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Ground-based Midcourse Defense customer
ÐÓ°ÉÊÓƵ has helped the United States Missile Defense Agency guard against all missile threats through its Ground-based Midcourse Defense system, which became operational in 2004. ÐÓ°ÉÊÓƵ has been the lead for the capability since 1998.
![Flag of United States](/content/theboeingcompany/us/en/defense/missile-defense/ground-based-midcourse/_jcr_content/root/container/container_1400147651/image.coreimg.png/1706557979429/united-states-of-america-300x147.png)
Defense feature stories
Ground-based Midcourse Defense quick facts
- Interceptors are emplaced at two sites in the United States, one in Vandenberg, California, and the other in Fort Greely, Alaska.
- Altogether, the Ground-based Midcourse Defense system requires 20,000 miles (32,187 kilometers) of fiber-optic cable.
- ÐÓ°ÉÊÓƵ has been prime contractor since 1998.
- ÐÓ°ÉÊÓƵ has partnered with the U.S. Missile Defense Agency in the design, development, integration, test and sustainment of all GMD components.
- Key subcontractors include Northrop Grumman and Raytheon.