Who were the Big Four leaders at the Paris Peace Conference?

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World War I A British soldier inside a trench on the Western Front during World War I, 1914–18.

The "Big Four" leaders who dominated the Paris Peace Conference in 1919 were:1

Woodrow Wilson: The president of the United States.1
David Lloyd George: The prime minister of the United Kingdom.1
Georges Clemenceau: The prime minister of France.1
Vittorio Orlando: The prime minister of Italy.1

While these four men were the primary figures at the conference, the most significant decisions were often made in private by the "Big Three"—Wilson, Lloyd George, and Clemenceau. None of the defeated nations were permitted to participate in these negotiations, and even the other associated Allied powers played only a minor role in shaping the final Treaty of Versailles.21