Otis R. Needleman
Banned
I'll take a general stab at this and say (re-reading the pertinent sections of this TL) that U.S. casualties would be OTL plus about 10%. This is taking in consideration that the casualties saved by butterflying the endgame of the Pacific War will happen in Europe instead primarily because of the use of Taubin and Sarin, the larger "Battle of Belgium", German units who choose to fight to the death and to a lesser extent, the Phoenix Cells.
I think I'm wanking the CW casualties a bit to give an extra 10% but it is hard to exactly know how effective the Allied protective measures would be in that time and place. Re. fanatical resistance (which realistically would be a course of action by a minority of German units in the West): the allies would simply subject holdout areas to a more thorough and prolonged bombardment with impunity---they have time on their side, after all. Pockets can be bypassed for later disposal.
I see the attrition exacted by Phoenix cell activity to have more nuisance than effective value and in its most vigorous years might have exacted a few thousand casualties a year spread out amongst the Allied powers. It is the civilian casualties that are going to be far higher than OTL due to no protection against CW agents and being the victims of blowback from Phoenix Cell activity or by being used as human shields by fanatical units. Horrifically so.
Even this reduced U.S. casualty figure (including an extra 40K KIA and over 60K wounded over OTL) would be horrific and the social effects stemming from this would really be no less than what you have already expressed.
Agree. I'd say an extra 10% US military casualties over OTL WWII, maximum. Believe Geon is spot on re US civilian casualties.