I thought this might be better as a seperate post.
Well speaking from an Australian perspective, Japan would have ultimately devoured Australia.
Now before anyone here starts quoting known Japanese intentions in regard to Australia, it must be remembered that it is probably true at the start of the Pacific war that to occupy Australia was just as ambitious for them as occupying the western United States.
We are talking here about "what if?'
Without the US factor in Japanese military planning, Australia and all it's food production capability would have been gobbled up.
Japan did not have a very good record as to the treatment of countries it occupied. One only has to read about how they treated the peoples of Singapore, China and all the others to see how they would have behaved with our white European society.
Our people would have been enslaved, tortured and murdered like our POWs were who fell into their merciless hands.
Australia had a very narrow escape and we owe modern Australia today to mainly the US Navy and the destruction of the Japanese fleet.
Britain could not help us. They could hardly help themselves with what they had on their plate in Europe and with the Battle of the Atlantic. Britain couldn't even hold Singapore.
Australia who sent such a massive committment to aid Britain in the 1st World War got one hell of a shock at just how let down we were in our hour of need.
After the war Australia lent towards the US and away from Britain for a big friend in a hostile world. We honoured the Anzus treaty by actively participating in any war that the US got itself into.
The actual wording of that treaty says that we will come to the aid of each other if attacked, but that was stretched by us to include any conflict, as a way of showing Australia's gratitude for the help we received from America that we owed our very existance to.
As for the Japanese, nothing has changed there. We do not trust them any more today than we did then.
Their ethics today can be layed bare by just witnessing their attitude to the taking of uncountable whales for scientlfic purposes.