The AUKUS agreement is "full steam ahead", Prime Minister Anthony Albanese insists, despite renewed criticism over the nuclear submarine deal.
In the latest alteration to the defence agreement with the United States and the UK, Australia will receive three second-hand Virginia-class nuclear submarines from the US, despite the original terms of the arrangement stipulating two used and one new boat.
The setback has reignited scrutiny over the mega-money deal.
It showed the greatest strategic risk Australia faced at the moment was losing sovereignty to Washington over the defence of the nation, Greens defence spokesman David Shoebridge told the ABC's Insiders program on Sunday.
Australia risked being dragged into a conflict between the US and China as a result, Senator Shoebridge said, and questioned the need for nuclear submarines to defend Australia's maritime approaches.