14. General Erich Ludendorff at the Second Battle of the Marne
During the Second Battle of the Marne in 1918, General Erich Ludendorff’s hesitation to adapt his strategies proved costly for Germany. Clinging to outdated tactics, he failed to anticipate Allied counterattacks, resulting in a decisive defeat that marked the turning point of World War I. Ludendorff’s inability to act boldly at a crucial moment sealed Germany’s fate. More on Ludendorff at Britannica.



