>>64152514
>Come to think of it, I can't think of a single instance where fixed fortifications actually succeeded in stopping an attacking mechanized army during a strategic level offensive.
Well, the Siegfried Line campaign was never 'won', it just got called off after the Battle of the Bulge started. But it wasn't exactly going well (after 3+ months and a quarter of million Allied casualties, the end goal of crossing the Rhine was still a looong way away). We lost over 30,000 men killed, wounded, or captured trying to take a 54 square mile patch of forest (which wouldn't be completely cleared until February the following year). If that's not "stopped", it's awfully damned close.