@axis_roll You are absolutely right and your advice make full of sense but my mistake is that i forgot to mention one critical information which is that we (me and my gaming group) ruled out the building of factory on islands (like in global).
We think this is just too darn cheesy
yep, we have the same limits in our Anniversary rules. Back to the OP. If you wanted to still buy an IC J1, FIC would be your best answer. It’s within range of the homeland ships for easy resupply.
As for the Russians i see what you mean. I thought it might make me waste time and resources to take it back but after all i asked for advice so i might just give it a try.
The Russians are wasting time and resources taking it for no gain, other than ‘forcing’ Japan to take it back. Their supply line is MUCH greater/farther, and they are using their defensive pieces offensively. If you have extra infantry or feel so inclined to make it more than a mere walk-in, I would leave 2-3 inf behind to induce an attack.