[m21sniper]

You have to consider a Germany that is master of Europe and has no other focus but to build a fleet of amphibs and warships to take the fight to the US.

And certainly by 1946 the empire of Japan could've invaded a poorly defended West Coast.

Remember, an isolationist America is not a well armed America.

If the Germans hit us from the East and the Japs from the West in 1946 simultaneously, and we are still flying around in P-40s and driving around in M3A1 Lee tanks, well....it would take us a long time to un-funk ourselves from such a mess.

We'd still win, but it would be really ugly for a while.