The letter of Boghos Nubar to the French Foreign Minister - December 3, 1918 (The letter bears the date on which it was received in the Foreign Office - December 3, 1918) In the letter, Boghos Nubar explained that the Armenians had waged constant war with the Ottoman Empire from November 1, 1914 right up to the signing of the Armistice of Mudros on October 30, 1918 and had thus been, in his eyes, "de facto belligerents"
Reference : A Myth of Terror.