Is that what happened?
We didn't declare war on Germany until after they declared war on us, on December 11, 1941. That would have been 3 days later.
Um, that's the point I was trying to make.
Secondly, the declaration of war was nothing more than a formal acknowledgement of something that had been going on for quite some time already. The U.S. was effectively at war with Germany long before December of 1941.
I also think the author's musings about the grand plans of Japan and Germany for North American conquest are pretty silly. Neither of those countries was remotely capable of even launching a single airstrike against targets in the U.S. at the time, let alone massing and transporting enough troops to occupy a country that was basically ungovernable at the time.