The best way, tech or no tech, is to stop them from gaining that 6-8 IPC swing in Ind/Aus/Haw for as long as you can.
I prefer to do this in such a way:
R1:
key purchases:
bmb, arm
key movements:
2 inf kaz -> per
2 inf stc, 2 inf far -> bry
2 inf nov -> chi
key mobilizations:
bmb cau, arm cau
R1: These are mostly moves to keep Japan honest. You’re moving units toward Asia to force Japan to take out the chinese now or never have a chance of securing it. It usually happens anyhow, but when/if it doesn’t you’ll be ready to make them pay in a big way.
J1:at this point you’ll know whether JPN’s decided to take his sz 61 units to burma and ignore phi. It’ll cost him cash in the long run but it can pretty effectively put a stop to this IC going up. It’s a good way to keep 7 IPCs out of jpn’s hands for J1 along with getting 7 more for US when their turn comes. The rest of the turn assumes Jpn wants to hit their island bonus and does not do that.
UK1:
key purchases:
IC
key movements:
any units that can make it -> ind
dd sz 41 -> sz 48
key mobilizations:
IC ind
If you’re extremely lucky, your Egy ftr makes it to ind. I’d suggest leaving all the units you can in Aus and resisting the temptation to transport them around the map and to the atlantic. dd blocks phi trns from getting to Aus.
US1:
key purchases:
at least 1 trn
key movements:
ftr haw, ftr sz 44 -> aus
key mobilizations:
everything purchased moves toward threatening Pacific theatres, chi inf -> sik
R2:
key purchases:
key attacks:
bmb cau -> sz 38
7 inf bry -> man if there are 3 inf or less there
key movements:
2 inf per, arm if built R1 in cau -> ind, 2 inf chi -> sik
UK2:
key purchases:
3 land/air units to place in ind.
key movements/attacks:
take bur back if you don’t have it.
At this point, you can play things by ear. If you feel like Aus might be in danger without ftr, keep them there. If Ind needs them, to Ind they go. The key here is, the Soviets are forcing the Japanese hand by making them have a significant commitment in northern Asia on J2. If UK2 opened the Burma road, R3 allows for 2 inf and an arm to take back yun. J2 has no chance of picking up their 3rd bonus except phi -> haw and that’s death for whatever units go, since you’ve built in the pacific. Get aggressive with that American fleet! Just pour units into sz 51, take Car giving the Brits a bonus, and make the Japanese answer this threat too. It’s going to be quite hard for Jpn to get above 50 on J3.
Getting UK units into China is important because any territory UK liberates in China can’t be retaken before the Chinese count territories for conscription.
Lots of things can obviously happen between R1 and R3, but the strat has been pretty effective for me against a wide range of strong players.