Diagram explaining how the Terminal High Altitude Area Defence missile system works.
The United States and South Korea said on Friday, July 9 that the Terminal High Altitude Area Defense (THAAD) anti-missile system will be used as defense against North Korea's growing nuclear and ballistic missile capabilities.
The announcement was the latest move by the allies against the North which conducted its fourth nuclear test this year and launched a long-range rocket, resulting in tough new U.N. sanctions and a series of bilateral sanctions against it.