Snake IV said:On a second thought Denmark and Norway shouldn't be able. Anyway I think you are not informed enough. There is a channel going from Kiel to aorund Hamburg (I think) called the Kiel channel. Owning Kiel in HoI makes it possible to move through form one side to another even if Copenhagen is in hostile hands.
Im being daft, i forgot about Kiel- i lost it to the Germans and couldnt get into the baltic.