The Battle of Berlin (November 1943 to March 1944) was a bombing campaign against Berlin by RAF Bomber Command, along with raids on other German cities to keep German defences dispersed. The attacks were a part of the bombing of Berlin during the strategic bombing of Germany in the Second World War. Air Chief Marshal Arthur Harris, Air Officer Commanding-in-Chief Bomber Command, believed that "we can wreck Berlin from end to end if the USAAF come in with us. It will cost us between 400 and 500 aircraft. It will cost Germany the war".
Harris could expect about 800 serviceable heavy bombers for each raid, equipped with new and sophisticated navigation devices such as H2S radar.