I supose it always depends on the situation.
But I like the following scenario good.
even if you still control Egypt - you must hold unto it. (send the 2 inf there from India)
send the 1 AC, 1 DD torwards the Japaneese transport.
send your fighter from the AC torwards the Jap sub + teamed up with your british sub. (in non-combat move thr 1 fgt you had versus there jap sub unto the american AC off Hawaii)
if all goes well. the jab sub and transport are destroyed. the american fleet at hawaii is now pretty decently defended. (they will have to send a pretty decent force to take it out. and if they do, quite possibly you can counter on your USA1 turn with 1 trn, 1 BB, 2 fgt, 1 bmb)
knowing this, you may be able to make a push vs his mini islands that are worth a lot to him quicker then you ussually do.
thats one of my takes on this.
you still have a british trn under australia. ( sent it eastward or keep it there a turn seeying what japan may do.)