海湾战争之后,美国把研制与部署武器系统的重点放在战区防御系统上。战区防御系统采取助推段拦截方案具有以下突出优点:处于助推段的导弹飞行速度慢、目标大、还未施放诱饵和采用突防措施,因而最容易被跟踪和瞄准,击毁概率较高;导弹在助推段被拦截后,弹片落在对方,因而可有效地扼制敌方使用携带核生化弹头的导弹。因此,五角大楼近年来对那些能有效摧毁助 After the Gulf War, the United States focused on developing and deploying weapons systems on theater defense systems. The tactical area defense system has the following outstanding advantages when it comes to the boosting section interception scheme: the missile in the boosting section has the advantages of slow flight speed, large target, no bait and sudden impact prevention measures, and thus is most likely to be followed and aimed at with a high probability of being destroyed; Missiles in the boost section was intercepted, shrapnel fell on the other side, which can effectively curb the enemy to use nuclear-chemical warheads missiles. As a result, the Pentagon has in recent years helped those who can effectively destroy them