A long-range ground-based interceptor is launched from Vandenberg Air Force Base, California, May 30, 2017. It successfully intercepted an intercontinental ballistic missile target launched from the Kwajalein Atoll in the first live-fire test event against an ICBM-class target. Credit: Missile Defense Agency

WASHINGTON — The Missile Defense Agency’s ground-based defense system successfully intercepted an intercontinental ballistic missile during the first live-fire test of its kind Tuesday, the agency said, a demonstration meant to show the U.S. ability to shoot down any incoming missiles launched from North Korea.

The Ground-based Midcourse Defense (GMD) is designed to intercept and destroy missiles during the midcourse of their trajectory through space. Tuesday’s test was the first time the system had faced a live-fire ICBM-class test, MDA said in a press release.

The interceptor launched from Vandenberg Air Force Base, California, and its “exo-atmospheric kill vehicle intercepted and destroyed the target in a direct collision,” the release said.

“The intercept of a complex, threat-representative ICBM target is an incredible accomplishment for the GMD system and a critical milestone for this program,” MDA Director Vice Adm. Jim Syring said in a statement. “This system is vitally important to the defense of our homeland, and this test demonstrates that we have a capable, credible deterrent against a very real threat.”

Rep. Mike Rogers (R-Alabama), chairman of the House Armed Services strategic forces subcommittee, said the successful test will help deter U.S. adversaries.

“The dictator in North Korea surely understands that the United States will not allow itself or its allies to be subject to his threats,” Rogers said. “We must do more to build on the success of today’s test to truly keep Americans and their allies safe from the threat of ballistic missile attack.”

The ICBM test target was launched from the Reagan Test Site on the Kwajalein Atoll in the Marshall Islands, according to MDA. The Sea-Based X-band radar in the Pacific tracked and targeted the launch, as did “multiple sensors,” MDA said, which would most likely include the Air Force’s main missile-warning satellite constellation, the Space-Based Infrared System.

The intercept is likely the last major test Syring will oversee before leaving MDA. Air Force Lt. Gen. Sam Greaves, former leader of the Air Force’s Space and Missile Systems Center, will succeed him.

Phillip Swarts is the military space reporter for SpaceNews. He previously covered space and advanced technology for Air Force Times, the Justice Department for The Washington Times, and investigative journalism for the Washington Guardian;...