The League of Nations Attempts at Peacekeeping in the 1920s (AQA GCSE History)

Revision Note

Zoe Wade

Written by: Zoe Wade

Reviewed by: Bridgette Barrett

How much success did the League of Nations have in peacekeeping in the 1920s?- Timeline & Summary

A timeline showing disputes settled by the League of Nations: 1920 Vilna, 1920-1921 Aaland Islands, 1921 Upper Silesia, 1923 Corfu, and 1925 Bulgaria.

The League of Nations had mixed success in peacekeeping during the 1920s. One successful example was the Aaland Islands dispute between Sweden and Finland in 1921. Both countries claimed the islands and there was a risk of conflict. The League investigated and decided that the islands should remain part of Finland but with special rights for the Swedish-speaking residents. Both countries accepted the decision and the League maintained peace.

The League also faced challenges and failures. One notable example was the Corfu incident in 1923. After an Italian general was killed in Greece, Italy demanded compensation and occupied the Greek island of Corfu. Greece appealed to the League but Italy refused to cooperate. The League struggled to enforce its decisions and had to rely on the intervention of other major powers to resolve the situation. Italy eventually withdrew from Corfu but the incident highlighted the League's limitations in handling more aggressive nations.

Vilna, 1920

A flowchart showing the reasons for the Vilna dispute, the League’s reaction and the eventual outcome
A flowchart showing the reasons for the Vilna dispute, the League’s reaction and the eventual outcome

Significance of the Vilna Dispute

  • It undermined the League’s power

    • It was the first time that an invaded country requested the help of the League

    • The League did not fulfil its pledge for collective security

  • It showed the reluctance of the permanent members to raise an army

    • France did not want to upset Poland

      • They saw Poland as a potential ally

    • Britain did not want to act without the support of other members

      • Britain did not have the money or arms to stop this dispute

Aaland Islands, 1920–1921

A flowchart showing the reasons for the Aaland Islands dispute, the League’s reaction and the eventual outcome
A flowchart showing the reasons for the Aaland Islands dispute, the League’s reaction and the eventual outcome

Significance of Aaland Islands Dispute

  • One of the biggest successes of the League of Nations

  • If both members respected the League of Nations, they would:

    • Ask the League for help in their dispute

    • Accept the League’s decision

Upper Silesia, 1921

A flowchart showing the reasons for the Upper Silesia dispute, the League’s reaction and the eventual outcome
A flowchart showing the reasons for the Upper Silesia dispute, the League’s reaction and the eventual outcome

Significance of the Upper Silesia Dispute

  • Initially, the Upper Silesia dispute was a success for the League

    • Both countries accepted its ruling

  • When the League’s solution ended in 1925, relations between Poland and Gemany worsened

    • Poland argued that half of the population of Upper Silesia was Polish yet they received only a third of the land

    • Germany stated that the agreement took away a quarter of its coal mines

A Polish poster from the plebiscite in Upper Silesia. Workers are standing on a symbol of imperial Germany. The text is written in Polish and German and states “The Crusader is in the dust. Don’t let him rise”
A Polish poster from the plebiscite in Upper Silesia. Workers are standing on a symbol of imperial Germany. The text is written in Polish and German and states “The Crusader is in the dust. Don’t let him rise”

Corfu, 1923

A flowchart showing the reasons for the Corfu Dispute, the League’s reaction and the eventual outcome
A flowchart showing the reasons for the Corfu Dispute, the League’s reaction and the eventual outcome

Significance of the Corfu Dispute

  • Without the USA, the League could not stand up to powerful countries like Italy

    • Britain and France preferred not to get involved in the conflict

    • Mussolini had successfully bullied the League into giving him what he wanted

    • It set the standard by which other aggressive leaders could manipulate the League

  • It demonstrated that organisations like the Conference of Ambassadors could overturn the League’s decisions

Bulgaria, 1925

A flowchart showing the reasons for the Bulgaria Dispute, the League’s reaction and the eventual outcome
A flowchart showing the reasons for the Bulgaria Dispute, the League’s reaction and the eventual outcome

Examiner Tips and Tricks

Conflict & Tension: The Inter-War Years, 1918–1939 tests you on your ability to explain the causes and consequences of events. For the League’s attempts at peacemaking, try to link key disputes together. For example, the actions of Italy in the Corfu dispute caused Greece’s invasion of Bulgaria.

Significance of Bulgaria Dispute

  • It showed the inconsistencies of the League’s rulings

    • Both the Corfu and Bulgaria disputes:

      • Involved the death of a military officer

      • Resulted in an armed invasion of a country

    • The League did not punish Italy for invading Corfu, yet punished Greece for invading Bulgaria

  • The League was desperate not to antagonise certain countries that could start a war

    • As a result, the League did not rule fairly in all disputes

      • This undermined their reputation as a peacekeeping force

Worked Example

‘The League of Nations’ attempts at peacekeeping were successful in the 1920s’

How far do you agree with this statement? 

[16 marks]

Partial answer:

One reason why I do not agree that the League’s attempts at peacekeeping were successful was because of how it handled the Corfu Dispute in 1923. Mussolini, the Italian dictator, invaded Corfu (an island owned by Greece). This was because he blamed Greece for the murder of an Italian general. This incident shows the League’s failure because, whilst Greece complied with the League and left Corfu, Greece had to pay Italy compensation. This shows that powerful leaders, like Mussuloni, could bully the League into giving him whatever he wanted. This also did not maintain peace as the League’s decision encouraged Greece to invade Bulgaria in 1925, believing it could act in the same way as Italy and get away with it. As a result, the League’s poor decision-making made a wider European conflict more, rather than less, likely. 

Examiner Tips and Tricks

It is vital that you spend at least 5 minutes planning your response to 16-mark questions for Conflict & Tension: The Inter-War Years, 1918–1939. This is because you need to ensure you have a sustained argument throughout your answer.

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.

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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.