LOL There’s practically nothing on the board!!!
I would keep pumping out MEN.
The more men Japan builds, the harder it will be for the US to take it, and they won’t be able to afford it.
The same goes for Germany. Infantry are going to be your best friend here, you’ve conquered Russia! Now it’s about killing everything off of the mainland.
As Japan, I would build up Fighters after securing my capital. They have long range, are cheaper than boats, and the US will have to buy expensive carriers to keep them away.