Before the Second World War, the British government expected aerial bombardment to cause hundreds of thousands of casualties in the war’s first two or three weeks.

“like tanks and airplanes and so on which were now like they existed in World War One but in a much more primitive setting so they were wondering what is going to be the impact of these technologies now that we have in them in much greater scale and the British governments had estimates of how many casualties there will be from aerial bombardments in the first few weeks of the Second World War and they expected hundreds of thousands of casualties basically in like two weeks three weeks after the war begins”