Originally Posted by
NutLoose
And the Maginot Line,
Setting aside the Great War, which for many reasons was very different, we have to go back to Wellington's successful Lines of Torres Vedras, Peninsular War, over 200 years ago.
One problem with defensive lines is they have to be manned, which fixes the enemy, and is hugely demanding in troops, as all the line needs protection, and the attacker can concentrate a schwerpunkt by choice. The defenders, of poor training and low morale, can be made to keep their heads down and be blinded by smoke.
This defence needed a mastermind .... cometh the hour, cometh the man.