What is the name of the treaty that formally ended World War I with Germany in 1919?

The Treaty of Versailles formally ended World War I between Germany and the Allied powers in 1919.

The treaty was signed on 28 June 1919 in the Hall of Mirrors at the Palace of Versailles, exactly five years after the assassination of Archduke Franz Ferdinand. It followed the Paris Peace Conference and imposed territorial, military, financial, and political conditions on Germany.

Germany lost territory and all of its overseas colonies, while its armed forces were sharply restricted. The treaty also created the League of Nations, an international organization intended to help prevent future wars. Article 231, commonly called the war guilt clause, assigned responsibility for wartime damage and provided the legal basis for reparations.

The treaty did not by itself conclude every peace settlement of the First World War; separate agreements covered Germany’s former allies. Many Germans regarded Versailles as humiliating, while critics argued that its terms were either too harsh or insufficiently enforceable. The treaty’s legacy became an important factor in interwar European politics.