The Armistice of Mudros , concluded on 30 October 1918, ended the hostilities, at noon the next day, in the Middle Eastern theatre between the Ottoman Empire and the Allies of World War I. It was signed by the Ottoman Minister of Marine Affairs Rauf Bey and the British Admiral Somerset Arthur Gough-Calthorpe, on board HMS Agamemnon in Moudros harbor on the Greek island of Lemnos.