My most recent Europe game saw Denmark being vital for the US to take and hold Norway, while the German’s had 4 transports in sz115 (Novgorod). Britain was able to take Denmark and West Germany. Then the US took Norway, and blocked the German navy with a DD at 114 so that the German’s could not conduct an amphibious landing. This worked to secure the Norway Major factory at a cost of only 3 US DDs over 3 turns (I sent my land units to Denmark instead of Norway to help the British hold it). Which then permitted the combined allied surface fleet to sail towards the Mediterranean and convoy Italy.