if Norseland was real would Germany have won The Great War?
I doubt it. The never ending stream of American troops is what caused the German army to retreat back into Germany. So would it happen here too. If it extended the war, then even more American troops would have arrived and perhaps even the bulk of the American navy would have arrived too. Mix that with the Royal Navy and no combinaton of any navies could have dreamt to match that fleet. Not even the combined Norse-German fleet.