The #Thaad flight test will be in early July, according to the U.S. Missile Defense Agency.
And though the United States has a THAAD system deployed in South Korea, the one that's being tested in the coming days will be in Alaska.
THAAD is a ground-based missile defence system created to shoot down short-, medium- and intermediate-range ballistic missiles.More news: Angelique Kerber through to face Garbine Muguruza in fourth round
This undated photo released by North Korea's official Korean Central News Agency (KCNA) on May 30, 2017 shows a test-fire of a ballistic missile at an undisclosed location in North Korea. Such missiles, if launched from North Korea, would be incapable of reaching the West Coast, but could strike as far as Alaska.
Unlike the Midcourse Defense system which failed three of five tests, the THAAD had a 100 percent success in 13 flight tests conducted since 2006.
A truck carrying parts of US missile launchers and other equipment needed to set up the Terminal High Altitude Area Defense (THAAD) missile defense system arrive at the Osan base, South Korea.
The exact date of the planned test is not being disclosed until it has taken place.More news: Donal Logue's daughter has returned home
On Thursday, President Donald Trump vowed to confront North Korea "very strongly", saying that the United States was considering "severe things" for Pyongyang.
Both Russia and China have opposed deployment of THAAD in South Korea.
The statement said Washington was using North Korea as a pretext to expand its military infrastructure in Asia and risked upsetting the strategic balance of power in the region. This could be helpful in defending against any incoming missiles from North Korea. Citing danger, the neighbouring nation South Korea started looking at THAAD for safety in 2013.
The full House of Representatives is due to consider the bill, and its amendments, next week.More news: U.S. bombers fly over South China Sea to assert right