CH/WI: US Experiences More Than One Million Casualties

...and no Hugh Dowding, no Keith Park, no Robert Watson-Watt, no Sydney Camm, no RJ Mitchell

and even then the smart money's on Britain

even if Lord Halifax didn't have a dentist appointment at the critical moment, an armistice still isn't a shoo-in

Why would Hugh Dowding, etc. matter for a political victory for the Nazis? They don't have to completely defeat Britain militarily, just have Britain throw in the towel politically. Think the Italian surrender IOTL which predated any major landings in mainland Italy.
 
I haven't seen a reasonable POD for WWII seguiing seamlessly into WWIII with the Soviet Union, but if there was a good POD, that would meet the challenge easily.
 
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