Ambassador Morgenthau’s memoirs of his years in the service of the United States in Constantinople, (today Istanbul), are an important primary historical resource for the study of the dissolution of the Ottoman Empire and the Armenian Genocide. During this genocide, approximately 1,500,000 Armenians living in Anatolia were murdered in an attempt to rid Turkey of its non-Turkish populations. Mr. Morgenthau left Turkey a frustrated man, having done all that he was able through diplomatic circles to halt the murders, to no avail.