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The US National Missile Defense program is designed in phases:
@ Phase 1: 20 interceptors based in Alaska by 2005.
@ Phase 2: 100 interceptors based in Alaska by 2010.
@ Phase 3: 125 Interceptors based in Alaska and 125 in North Dakota by 2020.
@ Phase 4: Additional interceptor bases covering Europe.
@ Phase 5: Space-based lasers.--Stephen V Cole
