Australia, the United States and United Kingdom will jointly develop hypersonic missiles to keep up with China and Russia, which publicly at least appear to have an edge in the new weapons technology.
In a pre-election boost for Scott Morrison, the trilateral agreement on hypersonics was signed under AUKUS, with the three countries also adding electronic warfare to the list of technologies they are co-operating on under the pact.
Matthew Cranston is the United States correspondent, based in Washington. He was previously the Economics correspondent and Property editor. Connect with Matthew on Twitter. Email Matthew at mcranston@afr.com