I’d never think of going KJF in a game where I would play for winning (and not for fun or ‘learning’ the game) and there is no time limit. I find KGF easier to orchestrate, straightforward and a safer path to Allied victory. However KJF really interests me and I’ve spend some time researching and trying to master it.
These are some of my thoughts on KJF. Some are very basic.
1. In order to execute a KJF plan the Allies must take Japan out with the US through the Pacific. They can’t take them out from mainland Asia only even if UK and US build their Sinkiang and India ICs. The double ICs are good for slowing Japan down in a KGF game, though.
2. So the US MUST go fully naval on the Pacific and abandon the Atlantic. There might be a configuration where the US somehow establishes an African shuck with their starting Atlantic fleet.
3. The US can try to sink the Jap navy. In order to do that they need to build an offensive fleet and will probably come from the Alaskan sea zone. They may need to build an Alaskan IC.
4. They can go island hopping (building a defensive fleet), diminishing Japan’s economy and eventually building a complex in one of the high IPC islands. For me the weakness of island hopping is that Japan can go for a ‘strafing your fleet(s) of your TRNs’ strategy as a counter.
5. The UK’s primary concern is to help Russia against Germany. However they must also contribute to a KJF. They have many options: Build an Indian IC (put pressure on the Asian mainland). Try to preserve the Pacific fleet. Build an Australian IC to reinforce it and expand the Allied naval game (either combining with the US or working separately). Park the fleet off the African coast and build a complex in SAfrica (and threaten Jap territories). Move the UK bmr in position to threaten Japan’s sea zones. Kill the Jap sub and reinforce US Hawaiian fleet with the ftr. Kill the Kwantung transport. The more they spend against Japan the better for Germany.
6. Against KJF it’s highly advantageous for Japan to build 3 TRNs on J1 in order to strengthen their navy.
7. My main concern with KJF is that I can never think of a round 1 situation where it would seem preferable to a KGF. Agreed, Japan not attacking PH could lure you to a KJF but that occurs on J1. What about G1?
If the German buys 2-3 TRNs can you be comfortable with KJF? If he spends nothing on ships isn’t it the best time for KGF (no opposition in the Atlantic – the Baltic open)? Only if he buys the AC I would consider KJF but even then I think KGF is safer.