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Treaty of Lausanne signed

The Treaty of Lausanne replaces Sèvres: the one peace of the settlement negotiated with a power that had won its own war.

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Map: Treaty of Lausanne signed, 24 July 1923
24 JULY 1923 · THE GREAT WAR, 1871–1923

The moment in context

The treaties with Germany’s allies applied the principle of self-determination, the idea that each nation should govern itself, much like a referendum on independence, but in ways that favoured the victors, paying their allies in the losers’ land. Saint-Germain, the treaty with Austria, left a small German-speaking republic of about six and a half million people and forbade it to unite with Germany. Trianon, the treaty with Hungary, gave Transylvania to Romania, Slovakia to Czechoslovakia, and Croatia and the Vojvodina to the new Kingdom of the Serbs, Croats and Slovenes, later called Yugoslavia. Neuilly took Bulgaria’s Aegean coast, and Sèvres divided the lands of the Ottoman Empire, the Turkish state ruled by a sultan or emperor, among Britain, France, Italy and Greece. Each treaty also made the loser accept the League of Nations, the new body meant to settle disputes much like the United Nations today, yet barred the defeated from joining at first, which let them treat the League as the victors’ club.

From Europe’s new borders after WWI, chapter 15 of The Great War, 1871–1923 (JUL 1923).

Teach this in 5 minutes

Then ask the room: “In 1919–1923 armies drew the map of Europe, and treaties only signed it.” How far do you agree? The argued answer is on the chapter page →

The atlas that shows it

The Great War, 1871–1923
15 CHAPTERS · AN INTERACTIVE SITUATION MAP

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