[Sanjuro]

Several British writers from the 1940s commented on the fear that the Soviets, on reaching Germany, might just keep going and try to conquer the whole of Europe. Given the level of exhaustion (not to mention bankruptcy) in Britain, and the massive destruction of European industry, this would have been a very hard fight- the initial US nuclear advantage giving a few years of grace, but at the cost of making Central Europe even more devastated.
By 1950, the Soviets might also have nuclear weapons; both sides might be using V2s and their derivatives.
Alternatively, a scenario could be built around an escalation at the time of the Berlin Airlift.
For either of these, PCs (potentially survivors of a decade of war) would have huge combat experience; the battleground would probably be Germany instead of Poland; US troops (who enlisted to fight Germany) would be angry about the extended war... the possibilities are endless.
Any ideas?