• The US’ Terminal High Altitude Area Defense (THAAD) anti-missile system is operational in South Korea to guard against missile threats emanating from North Korea.
• South Korea is concerned about the nuclear threat posed by the North Korea especially after the accession of Kim Jong-un as the supreme leader of North Korea in 2012.

However, China and North Korea have continually called the deployment of THAAD in South Korea as an act of aggression. It is similar to Iron Dome defence system of Israel.