With the outbreak of World War I Wangenheim was instrumental in securing the entry of the Ottoman Empire into the war as part of the Central Powers . Wangenheim oversaw Max von Oppenheim 's successful attempt to get the Ottoman Caliph Mehmed V to declare Jihad against the Triple Entente . During the time of Armenian Genocide there were accusations of German complicity and question 's were raised as to Wangenheim 's position of ' non-intervention ' ; the American Ambassador to the Ottoman Empire Henry Morgenthau in his book '' Ambassador Morgenthau 's Story '' ( 1918 ) would virulently criticise Wangenheim 's role . In an interview with an American journalist , Wangenheim stated : " I do not blame the Turks for what they are doing to the Armenians ... They are entirely justified "
Armenian Genocide
Armenian Genocide
Hans Freiherr von Wangenheim