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“Over the past 50 years, ACA has contributed to bridging diversity, equity, inclusion and that's by ensuring that women of color are elevated in this space.”
– Shalonda Spencer
Women of Color Advancing Peace, Security, and Conflict Transformation
June 2, 2022
How a Limited National Missile Defense Would Impact the ABM Treaty
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Lisbeth Gronlund and George Lewis

Preliminary Architecture for C-1/C-2/C-3 NMD Systems

  C-1 Configuration1 C-2 Configuration2 C-3 Configuration3
Number of Interceptors Deployed in Alaska 20-100 100 125
Number of Interceptors Deployed in North Dakota 0 0 125
Upgraded Early-Warning Radars Beale (CA); Clear (AK); Cape Cod (MA); Fylingdales (England); Thule (Greenland) Beale; Clear; Cape Cod; Fylingdales; Thule Beale; Clear; Cape Cod; Fylingdales; Thule; South Korea
X-Band Radars Shemya (Aleutians, AK) Shemya; Clear; Fylingdales; Thule Shemya; Beale; Clear; Cape Cod; Fylingdales; Thule; South Korea; Grand Forks (ND); Hawaii
SBIRS-Low? No Yes Yes

Source: U.S. Ballistic Missile Defense Organization

1. C-1 (capability-1) system is defined as defense against a "few, simple" warheads, where "few" referes to five or fewer warheads.

2. C-2 (capability-2) system is defined as defense against a "few, complex" warheads.

3. C-3 (capability-3) system is defined as defense against "many, complex" warheads.