From The Veterans Administration
World War I, commonly known as "The Great War," officially ended on June 28, 1919, when the Treaty of Versailles was signed at the Palace of Versailles in France. However, fighting had actually ceased seven months earlier, on November 11, 1918, when an armistice—a temporary cessation of hostilities—took effect between the Allied nations and Germany. For this reason, November 11th is widely recognized as the end of "the war to end all wars."
