But you can put ports or airbases on Islands, including New guinea correct?
IF New guinea is considered an Island, it doesn’t have the IC ability to place a factory anyway, plus being an Island makes that impossible. Is New Zealand considered an Island even though it is not fully surrounded by water on all sides, since it runs off the board?
Did they split up new guinea that way so you specifically could not utilize the scramble feature there? It is a pretty critical area for ANZAC if they want to get their bonus money. I have had decent success with using the Solomans as an airbase to defend the fleet around it. It is defend able against the Carolines and also has plenty of routes through the back to Western US and Australia. It does require ANZAC to cough up 15$ for it though, which could be a destroyer and a transport, also very important.