In the latter half of 1944, aided by new navigational techniques, the RAF returned with part of its force to an attack on industrial targets. These attacks were notably successful but it is with the attacks on urban areas that the RAF is most prominently identified.
The city attacks of the RAF prior to the autumn of 1944, did not substantially affect the course of German war production. German war production as a whole continued to increase. This in itself is not conclusive, but the Survey has made detailed analysis of the course of production and trade in 10 German cities that were attacked during this period and has made more general analyses in others. These show that while production received a moderate setback after a raid, it recovered substantially within a relatively few weeks. As a rule the industrial plants were located around the perimeter of German cities and characteristically these were relatively undamaged.
Commencing in the autumn of 1944, the tonnage dropped on city areas, plus spill-overs from attacks on transportation and other specific targets, mounted greatly. In the course of these raids, Germany's steel industry was knocked out, its electric power industry was substantially impaired and industry generally in the areas attacked was disorganized. There were so many forces making for the collapse of production during this period, however, that it is not possible separately to assess the effect of these later area raids on war production. There is no doubt, however, that they were significant...
The city area raids have left their mark on the German people as well as on their cities. Far more than any other military action that preceded the actual occupation of Germany itself, these attacks left the German people with a solid lesson in the disadvantages of war. It was a terrible lesson; conceivably that lesson, both in Germany and abroad, could be the most lasting single effect of the air war.