24/08/2026
JAPAN’S NEXT HYPERSONIC TEST RANGE MAY BE IN AUSTRALIA
Japan and Australia are taking their defence relationship into territory that would have been difficult to imagine only a decade ago.
On 18 August 2026, Japanese Defence Minister Shinjiro Koizumi and Australian Defence Minister Richard Marles agreed to establish a framework allowing Japan to use Australian test ranges for advanced weapons and emerging technologies.
And one programme was specifically named:
Japan’s hypersonic missile programme.
Tokyo is developing a new generation of domestically produced stand-off weapons, including a scramjet-powered hypersonic missile designed to travel above Mach 5 and engage both maritime and land targets.
Japan’s FY2026 defence budget allocates ¥30.1 billion for hypersonic missiles and related ground equipment alone.
But developing long-range weapons also creates a practical problem: they need somewhere to be tested.
Australia offers something Japan has in very limited supply: enormous, sparsely populated testing areas.
Koizumi described the possibility of Japanese Self-Defense Forces conducting test launches of stand-off weapons, including hypersonic missiles, in Australia as a potentially groundbreaking development, second only to Japan’s equivalent cooperation with the United States.
And missiles were only half of the announcement.
In July 2026, Australia and Japan successfully completed field trials of Project Boobook, their first-ever joint defence co-development programme.
The prototype uses advanced laser technology developed through decades of Australian research and Mitsubishi Electric expertise to optically detect incoming threats and improve platform surveillance and survivability.
The tests were conducted at Cultana Training Area and DSTG Edinburgh in South Australia.
Mitsubishi Electric Australia is now investing AUD 70 million in a new defence facility in New South Wales as the programme moves toward further development and potential production.
This is becoming much more than traditional military cooperation.
Japan and Australia are beginning to develop, test and potentially manufacture advanced defence technologies together.
And hypersonic weapons could be the next major step.