Syllabus Edition

First teaching 2024

First exams 2026

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The Warsaw Pact, 1955 (Edexcel GCSE History)

Revision Note

Zoe Wade

Written by: Zoe Wade

Reviewed by: Bridgette Barrett

The Warsaw Pact, 1955 - Summary

Tensions between the two 'Superpowers' of the USA and the Soviet Union had increased following the creation of Cominform in 1947 and Comecon in 1949. These organisations had convinced President Truman that the Soviet Union was seeking to spread communism in Europe. The fall of Czechoslovakia to communism in 1948 further confirmed these fears.

After the Soviet Union blocked access to Berlin during the Berlin Crisis, the Western powers formed the North Atlantic Treaty Organisation (NATO) in 1949 to make sure that they could counter any potential Soviet invasion of Western Europe.

After the introduction of the Federal Republic of Germany (West Germany) into NATO in May 1955, Stalin quickly moved to create a similar military alliance made up of countries of the 'Eastern Bloc'. This became known as the Warsaw Pact.

Europe was now not only divided by ideological differences but also by two rival military forces prepared for conflict.

Why was the Warsaw Pact Formed in 1955?

  • The Warsaw Pact was created in May 1955 in response to the German Federal Republic (West Germany) joining NATO:

    • The Soviet Union were worried about a strong West Germany being part of a military alliance with the USA

Reasons that caused the Warsaw Pact

Flowchart of key events in the creation of the Warsaw Pact: Truman Doctrine in March 1947, Berlin Airlift in June 1948, NATO's formation in April 1949, Warsaw Pact in May 1955, and West Germany joining NATO in May 1955.
A timeline showing the events leading up to the creation of the Warsaw Pact

Examiner Tips and Tricks

Some students confuse the Warsaw Pact with NATO. They are both military alliances. However, NATO joined the military force of the West whereas the Warsaw Pact was a military agreement within Eastern Europe.

What did the Warsaw Pact Promise?

  • The Warsaw Pact was a military alliance based on 'Collective Security'

    • If one member was attacked, all members would defend it

  • It was created to provide an equivalent military alliance to NATO

  • The Warsaw Pact was under the command of the Soviet Union

Aims and membership of the Warsaw Pact

Infographic of the Warsaw Pact showing its aims: protect against USA or NATO attack, assist members if attacked, strengthen Eastern bloc relations. Members: USSR, Poland, Czechoslovakia, Hungary, Romania, Bulgaria, Albania, East Germany.
An illustration showing the details of the Warsaw Pact

The Impact of the Warsaw Pact

  • The Warsaw Pact confirmed the separation of Europe into two groups:

    • Western, capitalist countries that were members of NATO

    • Eastern, communist countries that were members of the Warsaw Pact

  • The creation of the Warsaw Pact was a military decision by the Soviet Union

  • As of August 1949, the Soviet Union had achieved parity with the USA in regards to atomic weapons

  • The presence of two military alliances in Europe increased the likelihood of war and led to both groups increasing their military power

How did the Warsaw Pact affect US-Soviet relations?

Diagram showing the political, economic, and military tensions between the USA and USSR from 1947-1955, including Truman Doctrine, Marshall Plan, NATO, Cominform, Comecon, and Warsaw Pact.
An illustration showing how the Warsaw Pact contributed to the division between West and East

Worked Example

Explain one consequence of the Warsaw Pact (1995)

4 marks

Answer:

One consequence of the Warsaw Pact is the increased tension between East and West. The Warsaw Pact made a formal military alliance between the Soviet Union and the satellite states of Eastern Europe. This created two competing military camps in Europe - the Warsaw Pact and NATO. This made conflict more likely as both East and West possessed large combined armed forces and military equipment. As a result, the Warsaw Pact caused more tension between the communist Soviet Union and the capitalist USA.

Examiner Tips and Tricks

This question has previously asked you to explain two consequences. In the Superpower Relations exam paper for 2025, this question will ask you to explain one consequence. However, there will be two different "Explain one consequence of" questions, each worth four marks.

To gain four marks, the consequence should include:

  • An identified consequence of the event that is stated in the question

  • Specific own knowledge linked to the event that shows in-depth knowledge of the period

  • Using the own knowledge to explain the consequence of the chosen event

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Zoe Wade

Author: Zoe Wade

Expertise: History

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

Author: 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.