末段高空区域防御系统(俗称“萨德”),是美国导弹防御局和美国陆军隶下的陆基战区反导系统。“萨德”反导系统作为专门对付大规模弹道导弹袭击的防御系统,其独特优势是在防御大规模导弹威胁的同时,为作战部队提供更加灵活的使用选择。其目的不是取代而是补充MIM-104“爱国者”防空导弹以及海军“宙斯盾”弹道导弹防御系统、陆基中段防御系统 The last high-altitude regional defense system (commonly known as “Sade”) is a land-based theater antimissile system under the control of the U.S. Missile Defense Agency and the U.S. Army. As a defense system specially designed to deal with large-scale ballistic missile attacks, the “Sadd” anti-missile system has the unique advantage of providing combat troops with more flexible use options while defending the threat of large-scale missiles. Its purpose is not to replace but to supplement the MIM-104, “Patriot” anti-aircraft missiles and the Navy’s “Aegis” ballistic missile defense system, ground-based defense system