The Maginot Line: France's Defensive Barrier May 3, 2022

The Maginot Line: thousands of subway bunkers and concrete defenses lining the French border from Belgium to the Mediterranean Sea, a monumental engineering feat that was celebrated as a technical masterpiece when it was created. When the impregnable wall was demolished by the unbeatable Nazi war machine in 1940, the conquered fortress became the shattered symbol of French defeat.