I often redeploy 2 tanks, 2 a/c and do a few other things to hit Belgium in turn 2. It has mixed results and is, IMO, not ahistorical at all. Sure, it is confronting when first you get “done” but there is a lot like that in the game. It reflects the kind of madness of the Nazi assault in the first place, tbh. Definitely need good weather oh, and do,not take Luxembourg ... it shields the Germans , for a turn or two.
On French weakness ... it is all about morale. Very historical. Just like our dear friends the Italians!
My stories re Belgium in 1939...
Just won, by resignation, a game where Paris fell in January 1940. The moral shock of the blitz led to the Brits scarpering and some errors in defence, even so, this was a pretty quick end. It then, of course, led me to try my first 1940 Barbarossa ... all that time was gold. My oppo resigned in September 1940. I did not think I was that far in front but I will take it. I had hoped to play it out into 1941 to see if USSR could recover but I guess he was annoyed I had tried this. And, to be fair, I think we need some balance. Possibly something like unrest in Germany? Or accelerated reinforcements or ... hm. Not sure.
Am having a big fight with another v good Allied player Who defended France well, i got it in May. He activated the Italians and, while that has led to some wins in the desert for,him, they poured into southern france and ensured french surrender. This one is hard to call ... i reckon he will get me in the end since his russian defence is good and Italy is in strife now.
A third game, i got rubbish weather from turn 2 onwards and bad results in Poland. Even lost Slovakia due to carelessness. I then was still on infantry 1 when I hit Russia in July. Despite my best efforts in Russia, super careful manoeuvre play, I was toast.
So, I am all for the two front war.... makes it interestting!
I still remember cardboard!