Sigh. I hate this stereotype. The Prussians are not fucking Klingons.
I don't understand a single word of that sentence. Incidentally, I'm tempted by a rough timeline of all this.
I'm sure there will be gapping holes there; after all, I'm a space geek above anything else. Military matters are not my cup of tea. Feel free to patches the holes, then. This is only a tentative draft.
1940
May, 14
Bad day for the Wehrmacht in Sedan. Their bridgehead aborted; and worse, surprise is lost, since even the fossil french generals understood something big happened in the Ardennes. Now they are sending reinforcements.
June - July
More
Hannut, more
Gembloux, more
Stonne bloody stalemates. To the German generals, that war is turning into another WW1; they attack, the french resist, they both bleed to death. With a notable difference: it can't last four years, per lack of reserves on both sides. No meat grinder this time - once was enough.
Late May Mussolini don't moves by an inch. He is too frightened, and after all hitler spent most of the time humiliating him.
After a last bloody stalemate, the generals ask for a ceasefire. Hitler is evidently mad with rage.
August
A fragile ceasefire happens; noone thinks it could last very long.
September
Civil war breaks out in Germany, first between the varied nazis factions, then between the SS and Wehrmacht. The generals ultimately won that battle, and asks for surrender, with peace terms.
October
The peace terms are deemed unacceptable by both France (Reynaud) and Great Britain (Churchill)*. War will goes on, although both adversaries are so far exhausted noone can exploit the other weakness.
*POD is after May 10, 1940 so Chamberlain and Daladier are out.
1941
France and Great Britain are rearming, full steam, thanks to Arsenal America. Scores of Curtiss P-40, Douglas DB-7, Martin 167 and B-24 Liberators fill important gaps within the French Air Force.
Since Germans mechanized forces were badly mauled, and an anglo-french invasion of the fatherland will happens sooner or later, only token German forces occupations are left in Belgium and the Netherlands.
1942
Spring
Anglo-French offensive from the Maginot line in the direction of the Saar and Ruhr. After rapid initial progresses, the offensive soon run into fierce, if not desperate, German resistance. The Wehrmacht is slowly destroyed and pushed inland, at a very, very high cost reminiscent of WW1. Final victory is not expected before 1944 at best...
1943
Now it is the Pacific that erupts into a war. America goes to to war against Japan. It will last for years.
1944
Stalin is a happy man. Germany, France and Great Britain are bleeding themseves to death, while his Red Army is fine, thanks.
Or he waits a little longer and jump on them from Poland.
Or he waits for the Allies to reach Berlin, cleanup the mess, and turn Germany into a puppet, buffer state. Then a communist coup would do the job - surviving Germans are rather angry at Great Britain and France (how surprising !)
NOTE
Collaterals victims of that alt-WWII: the atomic bomb, the aircraft carrier, and the jet fighter. All are set back by months, if not years...