Which major agreement officially ended World War I?

The Treaty of Versailles is recognized as the primary agreement that officially marked the end of World War I. Signed on June 28, 1919, it was a significant document that outlined the reparations, territorial adjustments, and various clauses aimed at preventing further conflicts in Europe. The treaty specifically held Germany responsible for the war and imposed strict economic penalties, military restrictions, and territorial losses on it. Its significance lies in its far-reaching effects on the political landscape of Europe, as well as in setting the stage for future conflicts, including World War II.

The Treaty of Paris, while also important historically, is associated with the conclusion of different conflicts and negotiations. The Treaty of Berlin is not connected to World War I but rather relates to earlier geopolitical developments in Europe. The Treaty of London similarly does not pertain to the end of World War I. Therefore, the understanding of the Treaty of Versailles is crucial for comprehending not only the conclusion of World War I but also its long-lasting implications for international relations moving forward.