What battle ended ww1?

World War I effectively ended with the signing of the Armistice on November 11, 1918, which marked the cessation of hostilities on the Western Front. The final major battle leading up to the armistice was the Second Battle of the Marne, fought in July-August 1918, where Allied forces successfully repelled the last major German offensive. The formal peace treaty, known as the Treaty of Versailles, was signed on June 28, 1919, officially concluding the war.