Japan and Australia are coordinating to allow Japanese stand-off missile tests at Australian testing sites [1, 2].
This cooperation marks a significant shift in Japan's defense capabilities, potentially allowing the Self-Defense Forces to test advanced weaponry outside their own borders for the first time since the U.S. alliance.
Defense Minister Shinjiro Koizumi, 45 [2], met with Deputy Prime Minister and Defense Minister Richard Marles, 58 [2], in Canberra on April 18, 2026 [2, 3]. The officials discussed the implementation of launch tests for hypersonic missiles and other stand-off capabilities [1, 2].
Koizumi said that if the Self-Defense Forces can conduct launch tests for stand-off missiles, including hypersonic missiles, in Australia, it would be a groundbreaking initiative second only to the U.S. [1].
Beyond missile testing, the two ministers reviewed the progress of plans to introduce Mogami-class frigates to Australia [1, 2]. This equipment transfer is part of a broader effort to deepen defense ties, and share technical expertise between the two nations [1, 2].
Following the official meetings, Koizumi visited a memorial for former Prime Minister Shinzo Abe in Canberra [1, 2]. Koizumi said he offered flowers and a moment of silence at the monument to honor the former leader [2].
While some reports suggested the meeting occurred in Melbourne, primary records indicate the discussions took place in the capital city of Canberra [1, 3].
“Japan and Australia are coordinating to allow Japanese stand-off missile tests at Australian testing sites.”
The agreement to test hypersonic missiles in Australia signals Japan's increasing move toward a 'counterstrike capability' to deter regional threats. By utilizing Australian ranges, Japan overcomes the geographic constraints of its own islands, which often limit the testing of long-range weaponry. This partnership strengthens the strategic axis between Tokyo and Canberra, reducing Japan's sole reliance on U.S. facilities for high-end military validation.
