RAF Bomber Command
RAF Bomber Command controlled the Royal Air Force's bomber forces from 1936 to 1968. Along with the United States Army Air Forces, it played the central role in the strategic bombing of Germany in World War II. From 1942 onward, the British bombing campaign against Germany became less restrictive and increasingly targeted industrial sites and the civilian manpower base essential for German war production. In total 501,536 operational sorties were flown, of bombs were dropped and 8,325 aircraft lost in action. Bomber Command crews also suffered a high casualty rate: 55,573 were killed out of a total of 125,000 aircrew, a 44.4% death rate. A further 8,403 men were wounded in action, and 9,838 became prisoners of war.
Bomber Command stood at the peak of its post-war military power in the 1960s, the V bombers holding the United Kingdom's nuclear deterrent and a supplemental force of Canberra light bombers. In 1968 it was merged with Fighter Command to form Strike Command.
A memorial in Green Park in London was unveiled by Queen Elizabeth II on 28 June 2012 to commemorate the high casualty rate among the aircrews. In April 2018 The International Bomber Command Centre was opened in Lincoln.
Background
At the time of the formation of Bomber Command in 1936, Giulio Douhet's slogan "the bomber will always get through" was popular, and figures like Stanley Baldwin cited it. Until advances in radar technology in the late 1930s, this statement was effectively true. Attacking bombers could not be detected early enough to assemble fighters fast enough to prevent them reaching their targets. Some damage might be done to the bombers by anti-aircraft guns, and by fighters as the bombers returned to base, but that was not as effective as a proper defence. Consequently, the early conception of Bomber Command was as an entity that threatened the enemy with utter destruction. The Italian general Giulio Douhet, author of The Command of the Air, was of that view.In 1936, Germany's increasing air power was feared by British government planners who commonly overestimated its size, reach and hitting power. Planners used estimates of up to 72 British deaths per tonne of bombs dropped, though this figure was grossly exaggerated. As well, the planners did not know that German bombing aircraft of the day did not have the range to reach the UK with a load of bombs and return to the mainland. British air officers did nothing to correct these perceptions because they could see the usefulness of having a strong bombing arm.
Early years of the Second World War
At the start of the Second World War in 1939, Bomber Command faced four problems. The first was lack of size; Bomber Command was not large enough effectively to operate as an independent strategic force. The second was rules of engagement; at the start of the war, the targets allocated to Bomber Command were not wide enough in scope. The third problem was the Command's lack of technology; specifically radio or radar derived navigational aids to allow accurate target location at night or through cloud. The fourth problem was the limited accuracy of bombing, especially from high level.When the war began on 1 September 1939, Franklin D. Roosevelt, President of the neutral United States, issued an appeal to the major belligerents to confine their air raids to military targets. The French and British agreed to abide by the request, provided "that these same rules of warfare will be scrupulously observed by all of their opponents". British policy was to restrict bombing to military targets and infrastructure, such as ports and railways which were of military importance. While acknowledging that bombing Germany would cause civilian casualties, the British government renounced deliberate bombing of civilian property as a military tactic.
File:British WW2 medium bombers comparison.png|thumb|Scale comparison diagram of the trio of British twin-engined medium bombers at the outbreak of the Second World War; the A.W.38 Whitley, the Vickers Wellington and the Handley Page Hampden
The British government did not want to violate its agreement by attacking civilian targets outside combat zones and the French were even more concerned lest Bomber Command operations provoke a German bombing attack on France. Since the Armée de l'Air had few modern fighters and no defence network comparable to the British Chain Home radar stations, this left France powerless before the threat of a German bombing attack. The final problem was lack of adequate aircraft. The Bomber Command workhorses at the start of the war, the Vickers Wellington, Armstrong Whitworth Whitley and Handley Page Hampden/Hereford, had been designed as tactical-support medium bombers and none of them had enough range or ordnance capacity for anything more than a limited strategic offensive. Of these the Wellington had the longest range at.
Bomber Command became even smaller after the declaration of war. No. 1 Group, with its squadrons of Fairey Battles, left for France to form the Advanced Air Striking Force. This action had two aims: to give the British Expeditionary Force some air-striking power and to allow the Battles to operate against German targets, since they lacked the range to do so from British airfields.
In May 1940, some of the Advanced Air Striking Force was caught on the ground by German air attacks on their airfields at the opening of the invasion of France. The remainder of the Battles proved to be horrendously vulnerable to enemy fire. Many times, Battles would set out to attack and be almost wiped out in the process. e.g. 10 May 1940 when a significant number of Battles were shot down or damaged.
Following the Rotterdam Blitz of 14 May, RAF Bomber Command was authorized to attack German targets east of the Rhine on 15 May; the Air Ministry authorized Air Marshal Charles Portal to attack targets in the Ruhr, including oil plants and other civilian industrial targets which aided the German war effort, such as blast furnaces. The first attack took place on the night of 15/16 May, with 96 bombers setting off to attack targets east of the Rhine, 78 of which were against oil targets. Of these, only 24 claimed to have found their targets.
Bomber Command itself soon fully joined in the action; in the Battle of Britain, Bomber Command was assigned to bomb invasion barges and fleets assembling in the Channel ports. This was much less public than the battles of the Spitfires and Hurricanes of RAF Fighter Command but still vital and dangerous work, carried out night after night.
Bomber Command was also indirectly responsible, in part at least, for the switch of Luftwaffe attention away from Fighter Command to bombing civilian targets. A German bomber on a raid got lost due to poor navigation and bombed London. Prime Minister Winston Churchill consequently ordered a retaliatory raid on the German capital of Berlin. The damage caused was minor but the raid sent Hitler into a rage. He ordered the Luftwaffe to level British cities, thus precipitating the Blitz.
Like the United States Army Air Forces later in the war, Bomber Command had first concentrated on a doctrine of "precision" bombing in daylight. When the German defences inflicted costly defeats on British raids in late 1939, a switch to night bombing was forced upon the Command. The problems of enemy defences were then replaced with the problems of night navigation and target-finding. In the early years of the war bombers had to rely on dead reckoning navigation supported by radio fixes and astro-navigation.
Organisation
Bomber Command began the war with five groups engaged in bombing operations: Nos. 1, 2, 3, 4 and 5 Groups. Initially it comprised only RAF squadrons, although as it expanded, it came to include many squadrons formed by other Commonwealth air forces or European countries. At the same time, many individual personnel from a wide range of Allied air forces served within RAF squadrons.No. 1 Group was temporarily detached and sent to France to provide air cover for the BEF, but returned to the UK and Bomber Command control in 1940, after the fall of France. No. 2 Group consisted of light and medium bombers who, although operating both by day and night, remained part of Bomber Command until 1943, when it was removed to the control of Second Tactical Air Force, to form the light bomber component of that command.
Bomber Command also gained three operational groups during the war: the Pathfinder Force was expanded into No. 8 Group; No. 6 Group, Royal Canadian Air Force, and; No. 100 Group RAF, which specialised in electronic warfare. No. 8 Group, also known as the Pathfinder Force, was activated on 15 August 1942 and began operations on 8 January 1943. It was a critical part of solving the navigational and aiming problems experienced. Bomber Command solved its navigational problems using two methods. One was the use of a range of increasingly sophisticated electronic aids to navigation and the other was the use of specialist Pathfinders. The technical aids to navigation took two forms. One was external radio navigation aids, as exemplified by Gee and the later highly accurate Oboe systems. The other was the centimetric navigation equipment H2S radar carried in the bombers. The Pathfinders were a group of elite, specially trained and experienced crews who flew ahead of the main bombing forces and marked the targets with flares and special marker-bombs. No. 8 Group controlled the Pathfinder squadrons. No. 6 Group RCAF, which was activated on 1 January 1943, was unique among Bomber Command groups, in that it was a Royal Canadian Air Force.
A number of training groups were also part of the command. For example, these included, in June 1944, No. 26 Group RAF and three operational training groups: No. 91 Group RAF, Nos 92 and 93 Groups.
Strategic bombing 1942–1945
In 1941, the Butt Report revealed the extent of bombing inaccuracy: Churchill noted that "this is a very serious paper and seems to require urgent attention". The Area Bombing Directive of 14 February 1942 ordered Bomber Command to target German industrial areas and the "morale of...the industrial workers". The directive also reversed the order of the previous year instructing Bomber Command to conserve its forces; this resulted in a large campaign of area bombardment against the Ruhr area. Professor Frederick Lindemann's "de-housing" paper of March identified the expected effectiveness of attacks on residential and general industrial areas of cities. The aerial bombing of cities such as the Operation Millennium raid on Cologne continued throughout the rest of the war, culminating in the controversial bombing of Dresden in 1945.In 1942, the main workhorse-aircraft of the later part of the war came into service: the four-engined heavies. The Halifax and Lancaster made up the backbone of the Command; they had a longer range, higher speed and much greater bomb load than earlier aircraft. The older four-engined Short Stirling and twin-engined Vickers Wellington bombers were not taken out of service, but moved to less demanding tasks such as mine-laying. The classic aircraft of the Pathfinders, the de Havilland Mosquito, also made its appearance. By 25 July 1943, the Bomber Command headquarters had come to occupy "a substantial set of red brick buildings, hidden in the middle of a forest on top of a hill in the English county of Buckinghamshire".
An offensive against the Rhine-Ruhr area began on the night of 5/6 March 1943, with the first raid of the Battle of the Ruhr on Essen. The bombers destroyed of the city and hit 53 Krupps buildings. The Battle of Hamburg in mid-1943 was one of the most successful Bomber Command operations, although Harris' extension of the offensive into the Battle of Berlin failed to destroy the capital and cost his force more than 1,000 crews in the winter of 1943–44. In August 1943, Operation Hydra, the bombing of the Peenemünde V-2 rocket facility opened the secondary Operation Crossbow campaign against long-range weapons.
By April 1944, Harris was forced to reduce his strategic offensive as the bomber force was directed to tactical and transport targets in France in support of the invasion of Normandy. The transport offensive proved highly effective. By late 1944, bombing such as Operation Hurricane, competed against the German defences. Bomber Command was now capable of putting 1,000 aircraft over a target without extraordinary efforts. Within 24 hours of Operation Hurricane, the RAF dropped about of bombs on Duisburg and Brunswick, the greatest bomb load dropped in a day during the Second World War.
Wesel in the Rhineland, bombed on 16, 17, 18 and 19 February, was bombed again on 23 March, leaving the city "97 percent destroyed". The last raid on Berlin took place on the night of 21/22 April, when 76 Mosquitos made six attacks just before Soviet forces entered the city centre. By this point, most RAF bombing operations were for the purpose of providing tactical support. The last major strategic raid was the destruction of the oil refinery at Vallø in southern Norway by 107 Lancasters, on the night of 25/26 April 1945.
Once the surrender of Germany had occurred, plans were made to send a "Very Long Range Bomber Force" known as Tiger Force to participate in the Pacific war against Japan. Made up of about 30 British Commonwealth heavy bomber squadrons, a reduction of the original plan of about 1,000 aircraft, the British bombing component was intended to be based on Okinawa. Bomber Command groups were re-organised for Operation Downfall but the Soviet invasion of Manchuria and the Bombing of Hiroshima and Nagasaki occurred before the force had been transferred to the Pacific.
In Europe Bomber Command's final operation was to fly released Allied prisoners of war home to Britain in Operation Exodus.