U.S. Says THAAD Missile System In South Korea Is Now Operational

A Terminal High Altitude Area Defense (THAAD) missile interceptor system is now functional at its South Korean site. In this photo from 2013, one of the systems is seen performing a test launch.

The American missile system has caused controversy, partly because President Trump suggested he would charge South Korea for it.

(Image credit: Ralph Scott/U.S. Department of Defense)