Why new borders did not end disputes

G2 Elective History - syllabus K230, 2027

What this lesson teaches

  • I can explain how the peace treaties after World War I changed Europe, especially Germany.

    Syllabus K230, After World War I, Learning Outcomes. Explain the impact of post-war peace settlements on Europe.

Make a guess

After 1918 the peacemakers drew new borders so that peoples could rule themselves. Do you think every group got its own state?

  1. No, because the peacemakers kept the old empires' borders.
  2. Yes, each language group in Central Europe got its own country.
  3. No, mixed populations left many minorities inside other states.
Show the answer

No, mixed populations left many minorities inside other states.

Peoples were mixed together, so new borders left groups such as the German speakers in Czechoslovakia unhappy.

New borders gave some peoples their own states, but mixed populations meant many groups were left unhappy.

Self-determination means a people should decide its own future. As empires collapsed, new states formed. Poland became independent again. Czechoslovakia was created from lands of Austria-Hungary.

Peacemakers wanted nation-states, where people who shared an identity ruled themselves. But groups were often mixed together. So a new border could leave a minority, a smaller group, inside a state run by another group.

Borders also had to meet security and economic needs. Poland needed a route to the sea. But its corridor cut East Prussia off from the rest of Germany. Czechoslovakia had many German speakers. Some groups gained independence, while others were left unhappy.

Colonised peoples outside Europe did not get independence. Self-determination was applied unevenly, and later nationalists used these grievances. Remember, Versailles dealt with Germany. Other treaties dealt with Austria, Hungary and the other defeated states.

Self-determination
A people deciding its own future.
Minority
A smaller group inside a state run by another group.
Polish corridor
Gave Poland sea access but split Germany.

Worked example: A border solves one problem and creates another

The new Poland gets a route to the Baltic Sea.

  1. For Poland: sea access helps trade and independence.
  2. For Germany: East Prussia is cut off, which causes anger.
  3. Both are true. It depends which group you look at.

Watch out for this

Self-determination gave every language group its own state.

Mixed populations made that impossible. Many minorities ended up in other groups' states.

Check your understanding

Why did the Polish corridor cause problems?

  1. It gave Germany land that had belonged to Poland before the war.
  2. It gave Poland sea access but cut East Prussia off from Germany.
  3. It blocked Poland from reaching the Baltic Sea at Danzig.
Show the answer

It gave Poland sea access but cut East Prussia off from Germany.

Yes. One group's gain was another's grievance.

Sources and context

Background reading for this chapter.

The Wise Otter

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