Night after night through six long years of war, RAF Bomber Commands squadrons pounded away at the cities of Nazi Germany in a determined effort to bring the Third Reich to its knees. Pitted against Bomber Harris's aircrews and aircraft were some of the most effective and deadly defences the world has ever seen. For Bomber Command to launch a maximum effort raid on the Ruhr by night, or a low-level strike on an enemy target in occupied Europe by day, it involved a huge amount of planning. Who decided the policy? Why, when and where were the airfields built? How was the overall command structure organized, from the Air Council down to individual squadron level? How did the RAF train its bomber crews? What aircraft did they fly and what weapons did they use? Who were their commanders and who were the men that made up the rank-and-rifle of the Command? How was a raid planned and once it was launched what happened? This is a comprehensive overview of Bomber Command's wartime organization and operations, fully illustrated with a selection of archive photographs.