Why not ask if you need a transport to cross the Tasman sea. Heck, people can swim the English Channel so therefore no transport should be required, right?
Fair dinkum. This has got to be one of the weirdest A&A questions I’ve heard.
Just as a side note Make_It_Round, in alpha if you had a Japanese sub in the sz he couldn’t do an amphib w/transports only. This would force him to bring in surface ship(s) to escort the transports. Then you could use your sub & kami’s to try and sink his surface ship(s) if he still does the amphib. You probably only have a destroyer as a target, but hey makes him think.