 In that capacity he established a complex convoy system to protect British and allied shipping at sea in the Mediterranean from attack by enemy submarines.He went on to sign the Armistice of Mudros on behalf of all the Allies on 30 October 1918, by which the Ottoman Empire accepted defeat and ceased hostilities.Georges Clemenceau, Prime Minister of France, complained that Admiral Dominique-Marie Gauchet had not been present at the treaty signing but the British Government gave Gough-Calthorpe its full backing.