The Lockheed Martin weapons system that has North Korea spooked just got another $200 million in Department of Defense funds.

The U.S. Army's Terminal High Altitude Area Defense system, or THAAD, is one of the key elements in the U.S. military's layered ballistic missile defense. The multimillion-dollar modification contract is for upgrades to THAAD and the PAC-3 missile.

Last year, the U.S. deployed two THAAD launchers to South Korea in response to North Korea's increased missile and nuclear tests.

THAAD is one of most advanced missile systems on the planet and can target and blast incoming missiles right out of the sky from its truck-based launcher.