In May 1943, the Allies dropped specially developed "bouncing bombs" on select dams in Germany's industrial heartland. The Möhne dam was the hardest hit and 1600 civilians died in the flooding. The attack was dramatized by The Dam Busters (1955).
Before photo: Schalber, after photo: jamesvdm.
Before photo: Schalber, after photo: jamesvdm.