https://en.m.wikipedia.org/wiki/Proposed_Japanese_invasion_of_Australia_during_World_War_II https://en.m.wikipedia.org/wiki/Proposed_Japanese_invasion_o... You

https://en.m.wikipedia.org/wiki/Proposed_Japanese_invasion_of_Australia_during_World_War_II https://en.m.wikipedia.org/wiki/Proposed_Japanese_invasion_o... You might want to consider some counterfactuals where the US kept more to itself.