The Berlin Blockade, June 1948 (AQA GCSE History) : Revision Note

Zoe Wade

Written by: Zoe Wade

Reviewed by: Bridgette Barrett

Updated on

The Berlin Blockade, June 1948 - Summary

Political and economic differences between East and West caused tension over Berlin. In June 1948, the Soviet Union shut off the land routes in Soviet-controlled Germany, preventing Trizonia from accessing their zone in Berlin. Without supplies from Trizonia, people in West Berlin would run out of food and important resources.

If Trizonia attempted to access West Berlin by land, this would be seen as an act of war by the Soviet Union, which had the Red Army on standby. 

If Trizonia did nothing, West Berlin would be forced to accept help from the Soviet Union, placing them under Communist control.

Why Did the Soviet Union Begin the Berlin Blockade?

  • As with Germany, Berlin was split into two parts in March 1948:

    • The USA, Britain and France occupied the western zone

    • The Soviet Union occupied the eastern zone

  • After Trizonia introduced the Deutschmark in June 1948, Stalin wanted to demonstrate that Germany should not be divided

Causes of the Berlin Blockade

A timeline chart showing events leading to the Berlin Blockade. It begins with 'Bizonia' in January 1947, where the USA and Britain combine their zones in Germany. In March 1947, the 'Truman Doctrine' introduces tension between the capitalist West and communist East. In April 1947, the 'Marshall Plan' provides West Germany with $1.5 million in aid. In March 1948, France joins to form 'Trizonia.' In June 1948, the new 'Deutschmark' currency is introduced, clearly dividing Germany. The timeline ends with the 'Berlin Blockade' in June 1948, where the Soviet Union blocks land routes into Berlin.
A timeline showing the events that led up to the Berlin Blockade

Why did the Soviet Union choose to blockade Berlin?

  • The Soviet Union decided that preventing Western access to Berlin would be the most effective way of gaining control of Germany

Diagram showing causes of the Berlin Blockade. Three reasons are listed: 1) West Berlin relied on food from East Germany, 2) Allies had to travel through Soviet territory to reach West Berlin, and 3) The Soviet Union had 1.5 million soldiers in Germany. Each reason is followed by an explanation of how it gave the Soviet Union control over access to West Berlin. These led to the Soviet decision to block all land routes into West Berlin.
A diagram showing the reasons why blockading Berlin was the most effective way that Stalin could gain control of Berlin

How did the Soviet Union Blockade Berlin?

  • Berlin was deep inside the Soviet-occupied zone

  • Members of Trizonia had to use the two agreed land routes and two air routes to access their western zone in Berlin

  • In June 1948, the Soviet Union closed road rail and canal links across Soviet-controlled Germany 

  • Without access to West Berlin, the USA, Britain and France would not be able to send supplies:

    • West Berlin only had enough food for 36 days

    • West Berlin lacked important resources like fuel and medicine

  • Stalin hoped that the Western powers would give up their control of West Berlin, which would allow the Soviet Union to control the whole capital

    • It would also allow him to spread propaganda about the triumph of Communism over Capitalism

How did the West React to the Blockade?

  • The USA, Britain and France were in a very difficult position after the announcement of the blockade in June 1948

  • Control of West Berlin was important, but they had to balance the risk of going to war

How could the West respond to the Berlin Blockade?

  • The West had three options:

    • Withdraw from Berlin

    • Supply Berlin by land

    • Supply Berlin by air

A three-column decision chart titled “Option One: Withdraw from Berlin,” “Option Two: Supply Berlin by Land,” and “Option Three: Supply Berlin by Air.” Each option is followed by a set of colour-coded outcomes. Green boxes represent positive outcomes, and red boxes represent negative outcomes. Under Option One, the positive outcome is “Prevent war with the Soviet Union.” The negative outcomes are “Lose control of the capital of Germany” and “Policy of containment will have failed.” Under Option Two, the positive outcome is “Could provide West Berlin with supplies.” The negative outcomes are “Would make the West the aggressors” and “Would almost certainly lead the war.” Under Option Three, the positive outcomes are “Could provide West Berlin with supplies,” “Would not be entering by land,” and “The Soviet Union would be the aggressors if they shot any planes down.” The negative outcome is “Could lead to war if the Soviet Union shot any planes down.” A key at the bottom shows green for “positive outcomes” and red for “negative outcomes.
An illustration showing the options that the West could take to resolve the Berlin Blockade
  • Truman was not prepared to abandon the policy of Containment, especially so soon after his announcement of the Truman Doctrine

  • It was decided that supplies flown into West Berlin would be the most effective way to prevent West Berlin from falling into the hands of the Soviet Union and ensure that war between the two 'superpowers' was prevented

  • What followed was the Berlin Airlift

Worked Example

Source A is critical of the USSR’s actions in Berlin. How do you know?

[4 marks]

Source A: From an American newspaper, 12th September 1948

The activities of Russia in Berlin will convince any sensible person that Moscow is trying to drive the Western Allies to a declaration of war, in which they will be branded the aggressors. The longer the Western Allies remain in Berlin as targets of constant humiliation by the Soviet power, the greater the danger of plunging Europe into another war. The Western Allies can pull out of Berlin with dignity and get back to their own zones on the excellent grounds that co-operation with Russia is no longer possible. They can then establish their military, economic and political front along their Russian border and meet the Soviets on even terms.

Answer:

Source A is critical of the USSR’s actions in Berlin due to the content. The source claims that “Russia is trying to drive the Western Allies to a declaration of war,” showing that the USSR is being blamed for deliberately increasing tension (1). The creation of Trizonia in 1948 and the introduction of the Deutschmark convinced Stalin that the West was building a separate, Capitalist Germany. Therefore, the source presents the blockade as a deliberate attempt by the USSR to force the Allies out of the city and undermine their influence (1).

Another way Source A is critical of the USSR is because of the provenance. It is from an American newspaper in September 1948, during the Berlin Blockade (1). At this time, the USA was supplying West Berlin by air, and American public opinion was strongly against the USSR. Newspapers like this one were likely to be critical of Soviet actions, especially as tensions were rising and fears of war were increasing. This makes the source useful for showing how strongly the USA viewed the USSR's actions in Berlin (1).

Examiner Tips and Tricks

When applying your knowledge to a historical source you should:

  • read the source carefully

  • read the source more than once, if you have time

  • focus on just the content and the provenance of the source

  • whilst reading the source, underline or highlight relevant pieces of text

  • annotate the source by attaching your knowledge to the content and the provenance of the interpretation

For further guidance on this question, you can read this revision note on how to answer the 4-mark “How do you know” question.

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Zoe Wade

Author: Zoe Wade

Expertise: History Content Creator

Zoe has worked in education for 10 years as a teaching assistant and a teacher. This has given her an in-depth perspective on how to support all learners to achieve to the best of their ability. She has been the Lead of Key Stage 4 History, showing her expertise in the Edexcel GCSE syllabus and how best to revise. Ever since she was a child, Zoe has been passionate about history. She believes now, more than ever, the study of history is vital to explaining the ever-changing world around us. Zoe’s focus is to create accessible content that breaks down key historical concepts and themes to achieve GCSE success.

Bridgette Barrett

Reviewer: Bridgette Barrett

Expertise: Geography Lead

After graduating with a degree in Geography, Bridgette completed a PGCE over 25 years ago. She later gained an MA Learning, Technology and Education from the University of Nottingham focussing on online learning. At a time when the study of geography has never been more important, Bridgette is passionate about creating content which supports students in achieving their potential in geography and builds their confidence.