Question about Suez canal ownership in GS 3.0

[Cybvep]

Sweden cooperated with the Germans, so if someone wants a challenge, the two players may agree that the Allies will DOW Sweden during Barbarossa or whatever, "pretending" that the Swedish government is more pro-Axis and pro-war than it was IRL.

No. The conquest of Norway lasted 2 months. The Allies were eventually forced to withdraw, but it was by no means an easy and short campaign. Casualties were not high, but the Germans lost many ships (including half of their destroyers) and the conquest of France was quicker! Remember that Norway was underdeveloped in 1940, the terrain was (and is) rough and the infrastructure was poor.

[Peter Stauffenberg]

Norway didn't surrender with the fall of Oslo. Germany made a landing many places around on the Norwegian coast line (Oslo, Arendal, Kristiansand, Egersund, Stavanger, Bergen, Trondheim and Narvik).

Southern coastal Norway fell soon, but the Norwegians withdres inland to find in the valleys. In the north the Germans landed in Narvik.

The Allies helped Norway by landing in Åndalsnes and Namsos with the goal to attack Trondheim from two sides, thus cutting Norway in two for Germany. They also landed near Narvik and nearly crushed the German forces there.

So Weserübüng was a big amphibious attack that required the entire Kriegsmarine and lots of air support for the south. Still the invasion barely succeeded. Northern Norway would have been permanently lost to the Germans if it hadn't been for the Allies withdrawing completely from Norway due to Case Yellow starting.

Norway is definitely not a one turn invasion. Norway surrendered about 60 days after the start of Weserübüng. That is 3 game turns. Reading the German planning prior to Weserübüng the OKW believed that invading Norway was a huge risk and could only succeed if complete surprise was achieved. OKW realized that it would become very hard to supply Norway with the Royal Navy trying to prevent supplies from getting through. So the attack plan needed a simultaneous landing in many Norwegian ports so the supplies would get through to different combat areas. Germany only had air cover to the southernmost parts of Norway. Trondheim and Narvik were out of range.

[shawkhan]

W/O air support, Operation Weserubung could have never succeeded. THAT is the point.
And the forces involved were pitifully small compared to Case Yellow. As I said the Germans operated on a shoestring with many of their early war ops.
Do you know of many WWII amphibious invasions on at least a corps scale that succeeded w/o air support?
In the game Norway surrenders with the fall of Oslo, that is the point as far as air support being required is concerned. The fall of Oslo marks the end of Norwegian chances. In the game it is possible for the allies to land at other places as well before and after Oslo falls, but it doesn't change Norwegian surrender.

[Peter Stauffenberg]

The game isn't the same as the real war. We are speaking about how real war invasions could happen.

Operation Torch took place without a lot of air support. If we limit the game to only allow invasions if friendly air units fly over the invasion hexes then you can get quite a few strange effects.

I think it's best to leave the invasion rules as is.