In the course of the Second World War, objectives of the Allied Air Force's strategic bombing of Germany shifted from warfare related targets to the morale of the enemy civilians. This article shows how important this orientation became through the examination of the reports produced during the conflict by the Operational Research section of the Royal Air Force’s Bomber Command. These seldom used sources demonstrate that the results of the bombing of German cities were systematically analyzed in order to improve its effectiveness, regardless of civilian loss of lives. The goal was clearly to maximize destruction. The chapter demonstrates this through several examples of Bomber Command’s Operational Research civilian scientists knowingly being involved in this pursuit.