Enver Pasha assumed the primary role in the direction of the Special Organization and its center of administration moved to Erzurum. The first leader of the Special Organization was Süleyman Askeri Bey. After his death, he was replaced by Ali Bach Hamba on 14 April 1915, who held the post until the Armistice of Mudros. The last director, Hüsamettin Ertürk, worked as an agent in Istanbul of the Ankara government following the Armistice. He wrote a memoir called "İki Devrin Perde Arkası (Behind the Scenes of Two Eras)".