I do not believe that civilization will be wiped out in a war fought with the atomic bomb. Perhaps two-thirds of the people of the earth will be killed.
— Albert Einstein
Then the angel of the LORD went out and struck down 185,000 men in the camp of the Assyrians. When the people got up the next morning, there were all the dead bodies!
— Isaiah 37:36
You can't have this kind of war. There just aren't enough bulldozers to scrape the bodies off the streets.