Aukus: US, UK and Australia to develop underwater drone technology

On Saturday, the three defence ministers did not respond to a question from the BBC on whether the UUV technology project was aimed at countering Russian and Chinese undersea activities.

They also did not answer a question on whether progress on Aukus projects was too slow.

Under Pillar One of the defence pact, nuclear-powered attack submarines would be built in the UK and Australia for use in their navies.

For Australia in particular, the deal represents a major upgrade to its military capabilities.