NATO, 1949 (AQA GCSE History) : Revision Note

Zoe Wade

Written by: Zoe Wade

Reviewed by: Bridgette Barrett

Updated on

The importance of NATO for US-Soviet relations - 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 decided to create a military alliance to make sure that they could counter any potential Soviet invasion of Western Europe.

Still existing today, the North Atlantic Treaty Organisation (NATO) was established in 1949 with 12 members. This further increased tension between the East and West and prompted Stalin to create a similar military alliance in 1955, 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 NATO formed in 1949?

  • NATO was created in April 1949 in response to the growing tension between East and West following the end of the Second World War

  • The Berlin Crisis in 1948, followed by the communist takeover in Czechoslovakia, was the tipping point that convinced the Western powers to take a stand against the Soviet Union

The timeline in the creation of NATO

A timeline graphic showing key Cold War developments between 1947 and 1949:

September 1947: Cominform is created to strengthen communism in Eastern Europe.

February 1948: In Czechoslovakia, a non-communist government is replaced by communists.

June 1948: The Berlin Crisis begins as the Soviet Union blocks Western access to Berlin.

January 1949: Comecon is established to reduce trade between Eastern and Western Europe.

April 1949: NATO is formed as a formal military alliance between Western countries.
A timeline of events leading to the creation of NATO in April 1949

Examiner Tips and Tricks

Remember that the Conflict and Tension Between East and West exam tests you on your ability to connect events in an account. Using flow diagrams in your revision is a useful way to see how one event led to another event. To challenge yourself, write above each link the theme that connects the two events. For example, Cominform and Czechoslovakia link together. This is because Cominform was an agreement to bring the Eastern European governments together. Czechoslovakia is the practical application of Cominform.

What did NATO promise?

  • NATO was a military alliance based on collective security

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

  • It was created to counter the presence of the huge Red Army in Eastern Europe and send a message to Stalin that the West was united and prepared for future war

The aims and membership of NATO

A diagram explaining the formation and purpose of NATO (North Atlantic Treaty Organisation). In the center is the NATO title and logo.

On the left, under the heading "Aims", three purposes of NATO are listed:

Protect against a possible attack from the Soviet Union

Agree to assist a member if attacked

Strengthen relations between countries in the West

On the right, under "Members", it lists the initial Western member countries of NATO: USA, UK, Canada, France, Portugal, Belgium, Holland, Denmark, Norway, Iceland, Italy, and Luxembourg.
An illustration showing what NATO was

The impact of NATO

  • NATO marked a serious shift in US foreign policy because now they were officially prepared to use their military in Europe:

A diagram showing the increasing level of U.S. involvement in global affairs after World War II. The image is laid out as a horizontal flowchart moving from left to right:

"Isolationism" is on the far left, defined as "keeping out of the affairs of other countries," with the label "No involvement" underneath.

An arrow leads to "Truman Doctrine", which involves "providing political and economic assistance to other countries," labeled as "Some involvement".

Another arrow leads to "NATO", defined as "providing military assistance to other countries," with "Full involvement" written underneath.
A flowchart showing how US foreign policy changed from 1941-49
  • NATO further increased tensions between the USA and the Soviet Union

    • In August 1949, the Soviet Union successfully tested their first atomic bomb

    • In 1955, the Soviet Union created its own military alliance, known as the Warsaw Pact

Examiner Tips and Tricks

An exam question could ask you how far you agree that the formation of NATO was the most important reason why Cold War tensions increased between 1945 and 1955.

To achieve Levels 3 and 4 (9-16 marks) you must discuss the stated reason in the question. For this example, you would have to discuss the creation of NATO.

For further guidance on this question, you can read this revision note on how to answer the 16-mark “How far do you agree” question.

You've read 0 of your 5 free revision notes this week

Sign up now. It’s free!

Join the 100,000+ Students that ❤️ Save My Exams

the (exam) results speak for themselves:

Did this page help you?

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.