ＮＭＤ计划简介 ８０年代初，当时的美国总统里根提出了战略防御计划（ ＳＤＩ），即所谓的星球大战计划，要求研制一系列天基武器系统，用于击退前苏联的全面核进攻。因美国对能否掌握实施这项计划的技术能力把握不准，对部署一个星球大战系统没能取得一致意见。 １９９３年， Introduction to the NMD Program In the early 1980s, the then President Reagan proposed the Strategic Defense Plan (SDI), the so-called Star Wars project, calling for the development of a series of space-based weapons systems to repel the all-out nuclear attack by the former Soviet Union. Because of the United States’ uncertainty about its ability to grasp the technical capabilities to implement the plan, no agreement was reached on the deployment of a Star Wars system. In 1993,