IIRC, there was 1 major decision which was different than OTL which was to not use the DyLe plan because General Gamelin's deputy Georges wanted a reserve force. As the DyLe plan would not have a reserve force, the Eschaut plan with some modifications was used instead which allowed for there to be a reserve.Also this sounds very stupid, and I think I've read this thread 3 times but I still couldn't quite parse it out from the maps, but why DID the French manage to repel the Germans in the TL? I know they made some changes, but I didn't quite understand it. I know once the Germans decided to let themselves get encircled in Paris was the big gamechanger for the war-once that happened the French and British were able to get their shit together and also force a surrender en masse.
As such, when the Germans punch through the Ardennes Forest, there is a reserve force available to counter them. As the German Panzer corps outrun their infantry support, the reserve force is able to cut the Panzer Corps off from their supply lines. The Panzer Corps try to take Paris to force a French surrender/negotiate a way out for themselves back to Germany, but they eventually surrender due to a lack of supply.
As the Western allies don't get cut off from their supply lines because of Germany's Manstein Plan/Operation Sichelschnitt (Sickle Cut), the BEF is able to continue to reinforce their army on the European mainland as was the original plan. From there, the war progresses generally the way France & the UK planned on fighting the war, by grinding the Germans down with their superior combined economies and eventual larger army.
If anyone spots any mistakes I've made, please provide corrections as I've based this on what I can remember.
Edit: Thank you AlanJWhite for the correction on spelling for plan D (Dyle instead of Dyke)
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