I think they meant the size of the res. During WW2 blowing up dams did happen https://en.m.wikipedia.org/wiki/Operation_Chastise https://en.m.wikipedia.org/wik

I think they meant the size of the res. During WW2 blowing up dams did happen https://en.m.wikipedia.org/wiki/Operation_Chastise https://en.m.wikipedia.org/wiki/Operation_Chastise