desperation, i surmise, from china? it has twice as many ships as ausukus combined, with tonnage in fast deadly vessels vs huge fat targets—even their fishing vessels have armored ramming bows. i live down Little Creek Rd from the US naval war college. in 3 out of 3 scenarios of varying china confrontations, the US came out second place. DOD staff are concerned that if china wants they will take taiwan without a shot fired, and the allies can’t do anything to stop them. current posturing is for propaganda only. another clueless bit from bleibel.
In any case the australians are not going to see their american subs anytime soon.