Aukus critics don't understand the vast difference between nuclear and conventional subs
On 15 December 2021, a trilateral security and technology transfer agreement between Australia, the UK and the US was announced. Called Aukus, it has military and security cooperation in the Indo-Pacific at its heart, out of which comes the requirement to deliver nuclear-powered submarines to Australia. The UK and US do not have enough nuclear shipbuilding infrastructure even for their own needs, so in the longer run Australia will need to build its own boats.