It is Spring 1940, and both the British and the Germans have plans to invade neutral Norway. The British still have the French on their side, while the German Kriegsmarine will never be larger. Who will strike first? Norway 1940 is a ziplock expansion for PQ-17 that adds all the British, French, Polish, and German naval and air units needed to re-fight this tense air-naval battle, including such seldom-seen ships and aircraft as the repair ship HMS Vindictive, German Type II U-boats, Blackburn Skuas and Rocs, and early Ju88 heavy fighters.