[QUOTE=Hail Ants]
It could have made a tremendous difference.
Hitler is killed. The Wehrmacht successfully seizes power from the Gestapo & the Waffen-SS. They name Rommel supreme commander of all German forces. He immediately calls for a ceasefire and sues for a negotiated peace with the allies. America, not having suffered a ‘German’ Pearl Harbor, is willing to accept a German conditional surrender (immediate succession of hostilities, return to post-war borders, and reasonably appropriate reparations).
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Apart from the fact that Rommel was pretty much sitting on the fence about the plot(he knew about it but refused to commit himself to it or report it until he knew which side would win.)Rommel was not considered by the Wermacht in general to be an outstanding tactical leader and indeed compared to those who had spent most of the war on the ost front he wasnt,compared to your Guderians and Models he was very much minor league.
So there would have been no chance at all of his being made Sup.Cmdr. of the german forces.
The unconditional surrender was not negotiable by any of the three major allies,it was set in stone and the U.S. would not have broken ranks as any attempt to do so would have destroyed any future American credibility in any sort of international negotiations whether in trade ,finance,arms ,anything at all in fact for a long ,long time to come .
I doubt if Hitlers death would have caused the coup to be successful as the bestest and the mostest of Das Heer were too busy fighting for their lives on all three fronts to have the time or to even risk arresting badly needed fighting SS divisions, and the homeland forces were virtually all retreads,no match at all for the psychopaths of the Alleimagne SS and Gestapo.
Hitler was at that time micro controlling land forces down to quite small unit levels and his" stand where you are until dead" tactics greatly aided the allies ,a bit like a boxer having to stand still and let his opponent punch him rather then ducking the blow and then retaliating,likewise his using the first production jet planes for ground attack instead of against bomber formations and his map manouvering of
phantom units were all godsends .
Hitler dying would have meant that some of the finest generals in the world would again have the freedom to govern military tactics which would almost certainly have prolonged the war and have meant increased casualties on our side but probably lessened those of the Axis .
The outcome would still have been the same however.
As a matter of interest the British had an assasination mission planned to kill Hitler in the Eagles Lair that had a fair chance of success ,though the survivability of the mission on exfiltration would have been of a low order but it was cancelled late in the day for the very reasons given above.