The Butt report led to a marked change in bombing strategy. With precision bombing impossible at night, England would now do what Churchill had sworn it would never do: deliberately bomb noncombatants. The targets of the new British air campaign were the built-up areas of German cities, the residential centers where most of the workforce lived. Fifty-eight cities of over 100,000 people were put in the target list. The objective: to destroy “the morale of the enemy civil population and in particular, of the industrial workers.”

