Operation Argument, later widely known as Big Week, was the Allied air offensive conducted from 20–25 February 1944 against aircraft production and related industrial targets in Germany and occupied Europe. Although the operation is often associated chiefly with the daylight attacks of the United States Army Air Forces, the campaign also drew in RAF Bomber Command as part of the wider Combined Bomber Offensive. For the RAF, it represented a deliberate contribution to the effort to weaken the Luftwaffe before the invasion of north-west Europe later that year.
Strategic Context And Planning
By late 1943, the Allied bomber offensive had reached an important turning point. American daylight attacks had shown both the possibilities and the costs of deep-penetration raids against the German war economy. At the same time, British night bombing continued to place heavy pressure on industrial cities, transport networks and urban infrastructure. Allied planners increasingly judged that the German aircraft industry and the Luftwaffe’s fighter arm had to be struck more directly if control of the air was to be secured before Operation Overlord.
Operation Argument emerged from that requirement. The intention was not simply to damage factories in isolation, but to force the Luftwaffe into repeated combat while aircraft works, component plants, and associated centres of production were under attack. This brought together the distinct methods of the Allied air forces: American heavy bombers by day, and RAF Bomber Command by night. The arrangement was not without tension. Arthur Harris remained committed to the broader bombing offensive against German cities, while Air Chief Marshal Sir Charles Portal pressed for Bomber Command’s weight to be used in support of the concentrated anti-aircraft industry effort. In that sense, Operation Argument was also an important test of coordination within the combined Allied air campaign.
Forces, Aircraft And Command Structure
The operation was undertaken within the framework of the Combined Bomber Offensive. American heavy bomber forces carried out the main daylight blows against aircraft factories and related industrial targets, while RAF Bomber Command contributed major night attacks intended both to sustain pressure on German industry and to complicate the enemy’s defensive response.
For the RAF, the principal striking force was Bomber Command’s heavy-bomber fleet, notably the Avro Lancaster and Handley Page Halifax. De Havilland Mosquito aircraft also formed part of the broader night offensive in marking, diversionary and supporting roles. The RAF contribution therefore lay less in a separate, self-contained British operation than in the ability of Bomber Command to add continuous weight to the offensive across the full cycle of day and night. That coordination mattered strategically because it denied the German air-defence system any meaningful pause and added to the strain already being imposed on the Luftwaffe.
Execution Of The Operation
From 20 February onward the offensive unfolded as a sequence of major raids against centres connected with German aircraft production. Targets included important industrial areas in central and southern Germany, while the wider campaign also sought to draw German fighter forces into battle under increasingly unfavourable conditions. During the day, American bomber formations attacked factories and assembly centres. At night, Bomber Command struck major urban and industrial targets that were part of the same pressure system, keeping German defences under strain and extending the offensive's operational reach.
The RAF role in Operation Argument should therefore be understood in operational rather than merely chronological terms. Bomber Command did not simply happen to be attacking Germany during the same week; it was deliberately brought into a concentrated offensive whose larger purpose was to reduce the Luftwaffe’s strength and to unsettle aircraft production. The effect was to widen the burden on German command and control, air defence, repair work and industrial recovery. In practical terms, the RAF helped ensure that the offensive could not be answered by a single defensive rhythm. Pressure by day was followed by pressure by night, and the cumulative demand on German resources was correspondingly greater.
Results, Losses And Immediate Outcome
Operation Argument caused serious disruption and damage, but its results were mixed in strictly industrial terms. German production did not collapse outright, and the aircraft industry proved capable of repair, dispersal and continued output. Even so, the offensive achieved more than a simple factory-damage calculation would suggest. By forcing the Luftwaffe to rise repeatedly against large Allied raids, it contributed to the growing attrition of German fighter strength at a moment when Allied escort arrangements and operational experience were improving.
For the RAF, the operation demonstrated the value of Bomber Command within a tightly focused strategic effort rather than only a broad independent offensive. Bomber losses formed part of the cost of maintaining that pressure, but the larger effect of the week lay in the cumulative wearing down of German defensive capacity. The operation therefore stands as a partial success in immediate industrial terms, but a more substantial success in the wider battle for air superiority.
Historical Significance
The historical importance of Operation Argument lies in its role within the preparatory air campaign leading up to the Normandy landings. It did not by itself destroy the Luftwaffe, nor did it settle the air war in a single week. What it did show was that sustained, coordinated attack against aircraft production and fighter strength could shift the balance further in Allied favour. The RAF contribution was significant because Bomber Command’s night offensive helped make the operation a continuous, combined pressure campaign rather than a series of isolated daylight blows.
Operation Argument also illustrates the extent to which RAF strategy in 1944 was increasingly tied to wider Allied operational priorities. The week revealed both the limits and the usefulness of strategic bombing when directed at a defined military purpose. In RAF terms, it marked a moment when Bomber Command’s effort was explicitly connected to the coming cross-Channel campaign and to the broader struggle for control of the European air battle.
