The AUKUS trilateral security partnership has signed a new agreement focused on underwater drones and accelerating the existing submarine acquisition timeline. Under the revised plan, Australia will no longer purchase a new-build Virginia-class submarine and will instead acquire an additional used US Navy vessel, according to the Breaking Defense report.
This shift in procurement strategy is expected to reduce delivery timelines and lower costs, signaling a pragmatic recalibration of the alliance's naval modernization efforts. The focus on underwater drones also points to a growing emphasis on unmanned systems for regional deterrence in the Indo-Pacific.
Allied partners have welcomed the streamlined approach, while rival nations in the region are likely to view the accelerated submarine delivery as a strategic move to counterbalance growing naval capabilities. The agreement reinforces the deepening integration among the three nations' defense industrial bases.
Financial details of the revised submarine and drone agreements were not disclosed in the report. The original AUKUS submarine plan, announced in 2021, was projected to cost hundreds of billions of dollars over several decades.
Analysts suggest the decision reflects a practical adjustment to manufacturing constraints within the US submarine industrial base. Critics argue that relying on older vessels could introduce maintenance challenges and reduce the long-term technological edge Australia sought with new submarines.