If Russia is gone, and you can re-take your Asian territories…
Germany turns to kick UK out of Europe for the last time.
Grab those Asian territories as Japan
Get Australia and NZ (a TRN and your BB will do it… land 1 INF a round and the BB shot until you take Australia)
meanwhile, build up to 8 TRN’s, with 12 INF and 2 ARM in Japan. Add in a loaded AC (will take some time). Mix-up the build… AC and a TRN, then some INF and a FIG, then more TRN and INF, then another FIG and TRN…)
Then invade Alaska with 4 INF loads and the defense and attack value from teh FIGs.
Then, on the next round sned the OTEHR 4 TRN’s forward loaded, and bring the first 4 back.
That will give you 7 divisions (6 INF, 1 ARM) into Alaska every round, plus FIGs within range to assist on attack, and protect your TRNs from the US.
But get that Asian territory back first (you need the income) and grab Australia and NZ next (which will add to your income, and make Germany’s job easier crackign London).