OK… when the US is building in the Pacific, they are TWO moves away from Japan, that gives you time.
Start off with a superior DEFENSIVE fleet.
That means building an AC if you have lost both starting AC’s. Then keep your FIGs in range to land on them.
US goes after you, but whatever they build is TWO moves away.
If the US builds to be superior to your fleet, then build another AC (and move 2 more of your FIGs to where they can land on it when needed). And AC build adds 11 to your defense roll for only 16 IPCs (adding your land based FIGs).
If the US builds subs, then Japan should build a sub and a DST.
The thing is… Whatever the US builds, you get TWO moves to counter (did I mention that already?) before he can strike. And even at STARTING income, Japan could drop 2 AC’s, 2 NEW FIGs, and a sub. Add in your land based aircraft, your surviving initial BB’s, the TRN’s you had bought for your land assault on Asia…
The US can out economic and out build Japan on fleet IN TERMS OF UNITS.
BUT… Japan is in the DEFENSIVE role here. If the US is investing all of its money in the Pacific then they HAVE to attack, or the Axis wins. And defensive navy is CHEAPER than offesnive navy…
AC on defense are 3’s instead of 1’s
FIGs on defense are 4’s instead of 3’s
TRN’s are 1’s instead of nothing
And what is Japan’s starting advantage?
More BB’s, more FIGs.
That is more free shots that you can absorb, and lost of FIGs to load up 16 IPC’s AC’s.
So the US moves in and wipes out your TRNs. BIG DEAL. You wipe out TURNS of USA economics, and Germany gets to fight only 2 nations instead of 3… actually 1 1/2, because the Japan TRN’s are STILL sending forces to Asia while they are waiting for the US to move across the wide expanses of the Pacific…