The Berlin Blockade, 1948–49 (AQA A-Level History): Revision Notes
The Berlin Blockade, 1948–49
Background to the blockade
By June 1948, tensions between the Western Allies and the Soviet Union over Germany's future had reached a breaking point. The Western powers had decided to introduce a new currency, the Deutsch Mark, into their occupation zones. This economic measure aimed to move the Western zones towards greater stability and marked the beginning of plans to create a separate West German state. At the London Conference held on 7 June 1948, the Western powers agreed that West Germany should have a formal constitution (the rules defined by states which establish the rights of the people and set out the structure of government, the legislative system, and the role of the judiciary). Britain and the USA drove this decision, though France reluctantly agreed despite its objections.
The introduction of the Deutsch Mark was more than just an economic reform – it represented a decisive step towards creating a separate West German state. This move directly challenged Soviet plans for a unified, communist-controlled Germany, setting the stage for Stalin's dramatic response.
The Soviet response: 24 June 1948
Immediately following the introduction of the new Western-backed currency, on 24 June 1948, the Soviet Union imposed a complete blockade on West Berlin. Stalin ordered the closure of all road and rail links connecting the Western zones to West Berlin through Soviet-controlled territory. This action severed the city's land connections to the West, cutting off approximately 2.5 million West Berliners from essential supplies.
The Soviet objective extended beyond simply pressuring the Western Allies over currency reform. Stalin aimed to spread communism throughout Germany, and forcing the Western powers out of Berlin represented the first step in this broader strategy. West Berlin, located deep within the Soviet Zone, had become an isolated democratic outpost that the Soviets sought to eliminate.
Stalin's Strategic Goals:
The blockade served multiple purposes:
- Force Western powers to abandon Berlin
- Demonstrate Soviet control over access to the city
- Prevent the creation of a separate West German state
- Spread communism across all of Germany
- Enhance Soviet prestige and influence in Europe
The Western response
Ernest Bevin's analysis
Ernest Bevin, Britain's Foreign Secretary, took a leading role in shaping the Allied response to the Soviet blockade. In July 1948, Bevin presented his analysis to British Prime Minister Clement Attlee. Bevin argued that the continued Western presence in Berlin had prevented the Soviets from establishing a communist-controlled German government. He warned that withdrawing from Berlin would greatly enhance Soviet standing and persuade wavering populations in Germany to align with the Soviet Union, whilst demoralising Western allies across the free countries of Europe. Bevin made clear that maintaining a presence in Berlin served as a means to achieve broader containment goals rather than representing an end in itself.
Bevin insisted that the Allies must not employ military force to break through to West Berlin. Instead, the city had to be supplied with essential goods by other means.
General Clay's position
US General Lucius Clay, the American military governor in Germany, supported Bevin's determination to remain in Berlin. Clay believed that any withdrawal would threaten democracy's future in Germany, as a Western non-communist presence proved essential. In July 1948, President Harry S. Truman ordered Clay to report on the blockade situation. Clay's assessment indicated that the airlift could meet food requirements but remained inadequate for delivering the necessary quantities of coal needed to sustain the city through winter.
The Coal Challenge:
General Clay identified a critical weakness in the initial airlift plan. While food could be delivered in sufficient quantities by air, coal presented a far greater challenge due to its weight and the massive amounts needed to heat homes and power industry during the harsh Berlin winter. This assessment forced Western planners to dramatically scale up their airlift operations.
Truman's decision
President Truman's response to Clay's report demonstrated American resolve. Truman recognised that abandoning Berlin would severely damage plans for Western Germany and slow down European economic recovery. The West Germans themselves expressed deep concern about the possibility of the Allies leaving Berlin. Truman determined that the USA should pursue every possible peaceful resolution to the situation whilst remaining in Berlin. The airlift, though initially insufficient for coal supplies, represented the chosen strategy.
The Berlin Airlift
The Western Allies mounted an extraordinary supply operation to keep West Berlin functioning during the Soviet blockade. Between July 1948 and May 1949, American and British aircraft flew constant missions into the city, delivering food, fuel, medicine, and other essential supplies.
The scale of the airlift proved remarkable:
- July to December 1948: approximately 15,000-18,000 flights per month
- January to April 1949: flights increased to around 18,000-21,000 per month
- Monthly tonnage delivered ranged from 75,000 to 200,000 tonnes
- Peak deliveries reached approximately 200,000 tonnes in January and April 1949
Aircraft used three main corridors through Soviet airspace, landing at airfields in the Western sectors of Berlin. The operation required immense coordination, with planes landing at intervals of just minutes during peak periods. West Berliners, including children, welcomed the arriving aircraft, recognising them as lifelines for their survival.
The Scale of Success:
Despite initial concerns about coal shortages, the airlift eventually delivered sufficient supplies to sustain the population throughout the blockade period. The success of this operation demonstrated Western technological capability and political determination. At its peak, supply planes were landing in Berlin every few minutes around the clock, delivering everything from food and fuel to medical supplies and even Christmas presents for children.
The end of the blockade and its consequences
In May 1949, Stalin lifted the blockade. The Soviet leader had failed in his aim to prevent the creation of a separate West German state. Containment (the Western policy of preventing communist expansion) had proven itself as a working strategy, and by 1949 Europe stood divided into two distinct blocs: the communist East and the democratic West.
Long-Term Consequences of the Blockade:
The Berlin Blockade produced several lasting consequences:
- It confirmed the division of Germany as a long-term reality
- It demonstrated that the Western powers would not abandon their position in Berlin despite Soviet pressure
- It showed that the USA had committed itself to defending Western Europe
- It accelerated plans for creating two separate German states (the Federal Republic in the West and the German Democratic Republic in the East)
- It contributed to increased Cold War tensions and the formation of military alliances
The blockade marked a defining moment in the early Cold War, testing Western resolve and establishing patterns of confrontation that would characterise superpower relations for decades to come.
Key Points to Remember:
- The Berlin Blockade began on 24 June 1948, the day after the Western Allies introduced the Deutsch Mark currency into their zones.
- Stalin's objectives included spreading communism across Germany and forcing Western powers out of Berlin as a first step in this process.
- Ernest Bevin and General Clay argued successfully that the West must remain in Berlin but should not use military force, leading to President Truman's decision to supply the city by air.
- The Berlin Airlift operated for nearly 11 months (June 1948 to May 1949), delivering up to 200,000 tonnes of supplies per month at its peak.
- Stalin ended the blockade in May 1949 having failed to prevent West Germany's formation, and Europe remained divided into two competing blocs.