The deployment of a second TPY-2 radar to Japan was announced at the same time. In March 2013, the Obama administration announced plans to add 14 interceptors to the current 26 at Fort Greely in response to North Korean threats. Missile Defense Agency awarded Boeing a $397.9 million contract to continue development of the program. A third site was planned for a proposed US missile defense complex in Poland, but was canceled in September 2009. Interceptor sites are at Fort Greely, Alaska and Vandenberg Space Force Base, California.
Boeing Defense, Space & Security is the prime contractor of the program, tasked to oversee and integrate systems from other major defense sub-contractors, such as Computer Sciences Corporation and Raytheon. The system consists of ground-based interceptor missiles and radar which would intercept incoming warheads in space. Prototype of the Exoatmospheric Kill Vehicle That year, the MDA scheduled its first intercept test in three years in the wake of North Korea's accelerated long-range missile testing program. The program was projected to have cost $40 billion by 2017. missile defense programs, such as space-based and sea-based intercept programs, or defense targeting the boost phase and reentry flight phases. Previously known as National Missile Defense (NMD), the name was changed in 2002 to differentiate it from other U.S.
Army, and support functions are provided by the U.S. Missile Defense Agency (MDA), while the operational control and execution is provided by the U.S.
In 2019, a missile defense review requested that 20 additional ground-based interceptors be based in Alaska. The system is deployed in military bases in the states of Alaska and California in 2018 comprising 44 interceptors and spanning 15 time zones with sensors on land, at sea, and in orbit. It is a major component of the American missile defense strategy to counter ballistic missiles, including intercontinental ballistic missiles (ICBMs) carrying nuclear, chemical, biological or conventional warheads. Ground-Based Midcourse Defense ( GMD) is the United States' anti-ballistic missile system for intercepting incoming warheads in space, during the midcourse phase of ballistic trajectory flight. A Ground-Based Interceptor loaded into a silo at Fort Greely, Alaska in July 2004.
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