A couple of days ago, the US tested a Terminal High Altitude Area Defense (THAAD) missile against a target representing an intermediate-range ballistic missile. The Missile Defense Agency (MDA) announced:
A ballistic missile target was air-launched by a U.S. Air Force C-17 over the Pacific Ocean north of Hawaii. A THAAD weapon system located at PSCA in Kodiak, Alaska, detected, tracked and intercepted the target. Preliminary indications are that planned flight test objectives were achieved and the threat-representative, intermediate-range ballistic missile (IRBM) target was successfully intercepted by the THAAD weapon system.
. . .
This was the 14th successful intercept in 14 attempts for the THAAD weapon system. The THAAD element provides a globally-transportable, rapidly-deployable capability to intercept ballistic missiles inside or outside the atmosphere during their final, or terminal, phase of flight. THAAD is strictly a defense system. The system uses hit-to-kill technology whereby kinetic energy destroys the incoming target. The high-altitude intercept mitigates effects of enemy weapons before they reach the ground.
There's more at the link.
14 out of 14 ain't bad! Here's video of the test, including the parachute-assisted release of the target from a C-17 transport aircraft. I actually found that more interesting than the THAAD missile launch. Watch in full-screen mode for best results.
Well done to all concerned. With North Korea doing its nutjob thing, this sort of defensive system is more and more important to us all.