Terminal High Altitude Area Defense
Terminal High Altitude Area Defense or THAAD is an anti-ballistic missile system of the US army that can shoot down short, intermediate and medium range ballistic missiles in their terminal phase. The missile system uses a hit-to-kill approach. It doesn’t carry a warhead, rather depends on the impact’s kinetic energy to annihilate the incoming missile. A kinetic energy hit reduces the risk of explosion of the conventional warhead ballistic missile. In addition, a nuclear-tipped ballistic missile doesn’t explode on such a hit. But, a biological or chemical warhead could explode or disintegrate upon a hit and cause a risk of contaminating the environment. THAAD, previously called Theater High Altitude Area Defense, was designed to target Scuds and similar arms.