Revencher, what Kreuzfeld and Cow said is all true but you might find that some of those strategies are rather tricky. India crush is very cool but its easy to screw it up. You can do it, but its tricky. Same goes for what to do after a J1 attack. Again, its great but its tricky. Going for ANZAC is the hardest of all and not really that great.
The easiest option is probably to build an IC in Shantung, and take French Indo China then put an IC there J2. Build mechs and use your air power to slug it out with India while pushing China back to Sikang or Kansu. Never let China hold Yunnan and keep India as poor as possible by taking Malaya, Borneo, Kwangtung early (J1 or J2) and put subs off Calcutta. Take the DEIs if its easy but don’t sink too much into defending them; just enjoy the money while it lasts. If Siberians march West you can take Russian territories up North, but be prepared to kill those Mongols quick once you go into Amur. Ultimate goal is Stalingrad and to keep UK Pacific from doing much in the middle East or Russia. Late in the game you might use Japanese air power to SBR Moscow and maybe even load up your transports and sail your remaining fleet all the way to Cairo for the European win.
A good way to keep America busy in the Pacific side is to build a carrier and maybe a sub and destroyer every turn. For you a carrier is $16 (plus 2 planes you already have); for them its $36 (new carrier + 2 new planes). You will eventually lose the arms race but the idea is to keep them spending on this side of the world and delay the allies opening up a second front in Europe.
