The U.S. Missile Defense Agency (MDA) and the U.S. Navy said they successfully intercepted an advanced medium-range ballistic missile (MRBM) test target in Kauai County, Hawaii on March 28.

They said the interception was conducted as part of Flight Test Aegis Weapon System (FTM) 32, codenamed Stellar Laelaps.

The operation used the Standard Missile-6 (SM-6) Dual II with Software Upgrade (SWUP), which showcased the Aegis Weapon System's capabilities in detecting, tracking, engaging, and intercepting an MRBM target during its terminal phase.

The live intercept was executed by an Aegis Baseline 9-equipped ship, marking a pivotal moment in the advancement of missile defense technology.

U.S. ally Australia participated in the test, which showcased its capabilities by deploying air, land, and sea assets, including the ANZAC Class frigate HMAS Stuart and an Australian E-7 Wedgetail aircraft for data collection and communications support.

MDA Director Lieutenant General Heath Collins said: 'This successful advanced threat-representative target underscores the strength and adaptability of the Aegis Weapon System paired with the Standard Missile 6.

'Australia's collaboration in this critical test exemplifies the collective commitment to maintaining deterrence in the Indo-Pacific region.'

Australia's involvement extended beyond mere participation, with its assets contributing significantly to the test's success.

The ANZAC Class frigate HMAS Stuart showcased its radar capabilities, while an Australian E-7 Wedgetail aircraft facilitated data collection and communication efforts.

Australian sensors provided crucial target track data, enhancing interoperability between the two allied nations.

Lieutenant General Greg Bilton, AO CSC, Chief of Joint Operations for the Australian Defence Force said: 'It is a great example of our deepening defense engagement with the U.S. and an excellent opportunity to demonstrate the Australian Defence Force's interoperability with the U.S. Navy.'

The test, known for its complexity, represented the fourth flight test of an Aegis Ballistic Missile Defense-configured vessel using the upgraded SM-6 Dual II missile.

It also marked the second Aegis Baseline 9.C2 (BMD 5.1) intercept of an MRBM target utilizing the SM-6 Dual II SWUP missile.