@Jeremus:
If you are well defended in europe, I don’t think usa with a major in norway is a game ender. By the time they set up a fleet in the baltic sea and ready to land, your infantry stack should be quite large. In my case, the americans will be able to start landing from norway at turn 8 probably if they put everything there, but if they do so japan will become unstoppable and make more money than usa. Also on turn 8, my japan will conquer south africa or even better egypt if my opponent makes the mistake of liberating egypt from italians. So the axis will also have a superpower in the europe side of the board.
Germany will hold in my case.
Liberating Egypt is not a mistake. Losing it afterwards is.
USA doesn’t need to spend all on Norway, on the contrary. The threat of landings alone is already a good thing. They can even go over land with relatively cheap units, over Finland into Russia to help them out.
Keeping London and Egypt (or taking it back) is of course of major importance for the Allies, and unless London has fallen, UK should be ashamed if it loses S.Africa to Japan!