> created an impenetrable fortress along the border Absolutely not. No-one ever expected the Maginot line to hold more than a few weeks. It's goal was two-fol

> created an impenetrable fortress along the border Absolutely not. No-one ever expected the Maginot line to hold more than a few weeks. It's goal was two-fold: - Delay the invasion by a few weeks to give time for mobilization. - Force Germany to go through Belgium again to ensure the involvement of the United Kingdom which was guaranteeing Belguim. And both goals were achieved. > Another failure was that the massive gun turrets periodically embedded in the fortification were designed so that they couldn’t be rotated to point back toward France That's absolutely not a failure, it's a lesson learned from WWI: https://en.wikipedia.org/wiki/Fort_Douaumont https://en.wikipedia.org/wiki/Fort_Douaumont