How Did Thai Soldiers Reach Germany in World War I?
Understanding historical evidence
An exploration of Siam's (Thailand) decision to join the Allied cause in World War I, focusing on the role of global citizenship and international cooperation in a time of conflict.
Suggested age
14–16
Duration
30 minutes
Type
Lesson pack
Conflict / period
World War I
Subjects
Citizenship
Content note
This lesson deals with the history of a major conflict. Please ensure students understand that while military history can be abstract, it represents significant loss of life and human sacrifice.
Overview
An exploration of Siam's (Thailand) decision to join the Allied cause in World War I, focusing on the role of global citizenship and international cooperation in a time of conflict.
Learning objectives
- Understand the reasons for Siam's entry into World War I as a sovereign act.
- Examine the concept of international solidarity during global crises.
- Evaluate the impact of small-scale military contributions on international relations.
- Reflect on the ethical responsibility of nations to participate in global alliances.
Materials required
- Internet access to https://10secondwarstories.online/en/ww1/how-did-thai-soldiers-reach-germany-in-world-war-i
- Printed student worksheets
- Projector or whiteboard for video playback
- Pens and paper
Historical context
In 1917, Siam (modern-day Thailand) declared war on the Central Powers. This was a bold diplomatic move to modernise the country's status on the world stage and ensure equality in international treaties. The Thai Expeditionary Force sent to Europe provided motor transport corps, aviation units, and medical personnel, illustrating that the war was truly global in scope.
Reading material
In 1917, the Kingdom of Siam—now known as Thailand—made the significant choice to enter World War I on the side of the Allied powers. Despite being far from the trenches of the Western Front, the Siamese government saw joining the war as a way to secure its place in the modern world order. By sending a volunteer expeditionary force, including aviation and medical corps, they proved that global citizenship extends beyond borders. You can watch the summary of this event here: https://youtube.com/shorts/tG6ZAfH6qCA. For a more detailed account of their journey and contribution, read the full story here: https://10secondwarstories.online/en/ww1/how-did-thai-soldiers-reach-germany-in-world-war-i.
Student worksheet (preview)
Activity 1 :
Watch the short video at https://youtube.com/shorts/tG6ZAfH6qCA.
In one sentence, describe the main reason Siam entered the war.
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Activity 2 :
Based on the reading, list three ways the Thai Expeditionary Force assisted the Allied effort.
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Activity 3 :
Reflection. If you were a leader of a nation, would you join a global conflict if it meant gaining international respect, even if it risked your citizens' lives? Explain your reasoning in the space below.
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Discussion questions
- Why might a nation choose to join a war that does not directly threaten its own borders?
- How does being part of an international coalition affect a country's identity?
- What are the pros and cons of 'soft power' (diplomatic alliances) versus 'hard power' (military force) in international politics?
- How has the concept of global citizenship changed since 1917?
Extension task
Research the 'unequal treaties' that Siam had with European powers prior to 1917. Write a 200-word essay on how the war changed these diplomatic relationships.
Support prompts
- Focus on the 'why'—why did they want to be on the winning side?
- Think about the difference between fighting for survival and fighting for diplomatic recognition.
- Look at the map—consider how far Siam is from Germany. Why does this make their effort significant?
Sources and credits
- https://youtube.com/shorts/tG6ZAfH6qCA
- https://10secondwarstories.online/en/ww1/how-did-thai-soldiers-reach-germany-in-world-war-i
- Imperial War Museum (iwm.org.uk)
- The National Archives (nationalarchives.gov.uk)
- BBC Bitesize - World War I History
Prepared by History Education Services for Citizenship Studies.
Last reviewed: 2026-09-26