I predict a sad amount of parallelism with Singapore's defences totally getting punked and Percival taking the blame, although their guns would be facing the right direction with the right ammo this time. 
LOL...
I thought, especially considering we're in POST-1900, that the POD would be fairly obvious, or at least it's timing...![]()
Oddly enough an Anglo-American war could be that rarest of fish: a circumstance where you'd see a plausible alliance between America and Japan. Basically, America hammers Canada and duels the Royal Navy in the Atlantic, while Japan steals Malaya, Singapore and Burma, and ties up forces from India and Australia.