Universal History Archive/UIG via Getty Images
- The scale of the Allied invasion was unlike anything the world had seen before or will most likely ever see again.
- By that summer, the Allies had managed to slow the forward march of the powerful German war machine, which was also struggling against Russian forces on the eastern front.
- Visit INSIDER's homepage for more stories.
The Allied invasion of Normandy, France on June 6, 1944 was the largest amphibious invasion in history. The scale of the assault was unlike anything the world had seen before or will most likely ever see again.
By that summer, the Allies had managed to slow the forward march of the powerful German war machine. The invasion was an opportunity to begin driving the Nazis back.
The invasion is unquestionably one of the greatest undertakings in military history. By the numbers, here's what it took to pull this off.