I don’t have a military background either but friend, if the enemy is sending rounds(bombs, missiles,etc) hot and heavy in your direction, his air assets pretty much own your sky and his ground forces and armor are barreling down the main street of your town, 20 or 30 minutes is too long. You would think the Dutch might have learned that lesson. After all, there are for certain a number of these German airborne troops who’s grandfathers and great-grandfathers dropped out of the sky and into their little country one fine May morning 73 years ago last month.
I’m thinking that the Dutch didn’t have any good intel, back then, to see it coming.