In 1940, Germany toppled France in 20 days, and the panzerdivizion symbolized war's shift from drawn-out conflicts using massive fortifications to rapid-fire engagements built around manned, motorized armor.

Quote

“In 1940, Germany toppled France in 20 days, and the panzerdivizion symbolized war's shift from drawn-out conflicts using massive fortifications to rapid-fire engagements built around manned, motorized armor.”