Passover seder in April 1919 in Paris, France, given by the Jewish Welfare Board to Jewish members of the  American Expeditionary Forces. Germany formally surrendered on Nov. 11, 1918. On June 28, 1919, Germany and the Allied Nations (including Britain, France, Italy and Russia) signed the Treaty of Versailles, formally ending the war. Photo: U.S. National Archives and Records Administration/Wikimedia Commons