Add Axios as your preferred source to
see more of our stories on Google.
Defense chiefs Pete Hegseth, Richard Marles and John Healey at the Pentagon in December 2025. Photo: Jim Watson/AFP via Getty Images
The U.S., U.K. and Australia will together develop interchangeable sensors and weapons for their uncrewed underwater vessels.
Why it matters: It's the first "signature" undertaking for AUKUS Pillar II, the autonomy, cyber, electronic warfare and quantum side of the trilateral pact so often associated with submarines.











