Starving the japanese out of oil

[Skanvak]

I have to make research on the effect of the submarine on oil supply. Point is that the effect have a much more important impact on production (ie less indsutrial production)because electricity was oil dependent too and taht is a fixed factor in the game.

I wonder how to put the submarine warfare in the game, that could be fun.

Though the japan navy was able to sail, same for the aircraft, until the end of the war. So I guess that oil shortage was more a threat at the start and that Japan could have made a huge reserve during it successful time (historical result is win by strategic bombing).

Thought giving more strategic impact on some bases can be fun but remember that Japan is already at a great disavantage and stand, normaly, nearly no chance of winning as it is.