Maps from the military history classes at St Cyr Officers Academy in France - in 1926

I've popped these up for sale here

https://www.etsy.com/uk/listing/565201918/vintage-set-of-80-battle-maps-from-the?ref=shop_home_active_1

I found them in France a couple of summers ago.   They are very evocative. This officer studied in 1926. I'm quite sure they would have been at war in 1940.  They were being taught the lessons of the Napoleonic wars, 1970, 1914.  These maps - 80 or more of them, show the battles they studied and maybe shows why, in part, they were unprepared for what was coming.