@NikephorosSonar
American disunity is a problem for them. Currently both the Confederation of Great Lakes and the Federated Union of America are in a tense but largely bloodless stalemate with New England, and both are racing west. If the Confederation of Great Lakes gets the advantage in that race and cuts off access to California, it will limit the Federated Union of America's ability to strike directly against Japan. Regardless of how that turns out, I plan on role playing a military alliance between the Confederation of Great Lakes and the Federated Union of America relatively soon. It'll essentially combine their armies while putting off the political details.
@Kaiser_Mobius
Oh ye of little faith. More troops will probably become available for a serious campaign in the Americans. If I have to, I'll strip Europe of its garrisons and abandon India to the Bhartiya before giving up a tenable position in California. Speaking of the Bhartiya, I'm also interested to see how they do. I failed to fire their mass-revolt/dissent events again (something to do with them already happening, I think), so while I managed to add a little dissent to weaken the Princely Federation's army when I started the war, the Federation isn't quite the basket case it was during the first war with the Bhartiya.
@Mkoll13
In the unlikely event I get kicked out of California and Vancouver, I will seek a peace in the Americas. Probably one that lets New England go its own way (depending on election results, rejoining the other Americans or not), tacitly acknowledges Mexican gains, and forges a peace based upon continuing independence for Quebec (borders shrunken to Quebec proper), Alaska remaining with Japan (did the Americans really want to go to the trouble of reconquering that when they could have their peace?) and results in a new world power (the old U.S.A minus Alaska & Mexican gains but with the addition of Canada minus Quebec). I don't think there's a big risk of that happening. But it can take a few weeks for transport fleets to cross the Pacific or transit from South to North America, so if I miscalculate and lose, as I said, my footholds in CA & Vancouver, that's what I'll do.
@Antiochus III
I'm honored. As a long-time lurker myself, I'm well acquainted with the pleasures of lurkerdom. I'd like to take the opportunity to thank all my lurker-readers and say I'm glad you're showing up and enjoying the story. As for what happens if I win the war in America, there's basically two options. Increasing balkanization could be kicked around, but it is assumed that if national identity gets too weak, pan-American identity will prove dominant. So Tokyo doesn't really think increasing Balkanization could work. Though I suppose forced-migration in the south could create a majority black nation, Texas could be created , that sort of thing. But that kind of policy, especially the forced-migration, is pretty anathema to, as you put it, a "light-side" Japan.
Anyway, the two main options being considered are: force everything back into pre-war borders (Japan is still scared of a unified America) in an attempt to solidify and force the creation of distinct national identities for the new countries, which will eventually reduce the desire for reunification itself. Or: create a Co-Prosperity state consisting of all of North America east of the rockies. Essentially, ending the attempt at balkanization in favor of the new economic doctrine and hoping the beneficial post-war policy will create friends ala the USA & Germany after WWII in our timeline.
@Gukpa
Japan is FAR from abandoning California! The area is too rich, prosperous, and has too much of a natural Pacific orientation.