Ok I know this game is on a large scale but what if it could be worked into the game that if say the Japanese took the Solomons and then were able to move on to New Caledonia and further and cut off Australia that the US would suffer some type of penalty ( Don't know what) until the communication and supply lines could be reopened. After all if the Japanese had been successful at Guadacanal this is what the US was afraid of would this option pull the US into this area thats what took place anyway, and with the naval battles that would take place who knows what might happen. On the other hand the Outer Islands that the Japanese control when the US retakes some of them the Japanese would suffer some type of penalty, and the thing is none of these options would have to be used the Japanese do not have to try and cut off Australia the US does not have to take any of the Outer Islands but it might add some interesting options if the details could be worked out.
Coolpepaw60