The U.S. conducted a successful test of the Terminal High Altitude Area Defense (THAAD) missile defense system on Tuesday morning, according to a press release from the U.S. Missile Defense Agency (MDA)

The system intercepted a projectile designed to simulate an intermediate-range ballistic missile (IRBM) and took place over Alaska.

Washington has pushed for a THAAD system to be installed in South Korea to help defend against the North’s evolving missile development. While the system’s hardware is already in South Korea, its full deployment is currently awaiting a green light following an environmental review.

“I couldn’t be more proud of the