When asked on Friday about a possible Australian missile defence system against such threats as a North Korean intercontinental ballistic missile, Mr Turnbull said the Australian focus was on protecting deployed forces in the field.
The exact date of the planned test is not being disclosed until it has taken place. North Korea's ICBM has a theoretical range to Alaska, based on estimates from the test.
Following the successful North Korean ICBM test earlier in the week, the United States has announced its intention to carry out a new test of their THAAD missile defense system, an attempt to shoot down an IRBM simulating an attack around the THAADs in Alaska.
The MDA has claimed that THAAD had a 100 percent successful track record in its 13 flight tests since 2006.
In recent testimony to Congress, Vice Admiral James Syring, then the director of the Missile Defense Agency, had said FTT-18 would aim to demonstrate THAAD's ability to intercept a separating IRBM target. While the North Koreans may have the technology to send a missile to Alaska, with THAAD, it appears doubtful that it would hit its target.
The test of the Terminal High Altitude Area Defense missile, created to shoot down medium and intermediate range missiles, has been planned for months, Reuters reported. This drew criticism from China. The joint statement claimed that Washington was using North Korea as a pretext to expand its military infrastructure in Asia.
Mr Turnbull said that in terms of a missile defence shield for Australia there had been talk of the THAAD system, which is being deployed in South Korea. The debate will continue as a updated defense bill hits congress very soon. Share your thoughts below.