Nazi Biopolitics

Nazi Biopolitics made the biological management of populations a political project: racial classification and claims about collective health could determine who was protected, exploited, or excluded from life. In the book, its importance lies not only in the ideology it expressed but in the institutions and professional language that made violence appear to be administration and research. At Auschwitz, Josef Mengele’s selections and experiments put that logic into practice; afterward, his defense of them exposed how thoroughly he had made it his own.

Ideology and the Biological State

The ideology rests on a view of society in which race, heredity, and biological fitness define collective well-being. In his later recollections, Mengele describes his generation as having learned to understand law, war, sex, international relations, and medicine through race and bloodlines. He presents this outlook not as a narrow professional interest but as a comprehensive account of how a society should be ordered. Its premise is that the individual may be subordinated to the supposed needs of the community and state.

The account also places this belief within a wider intellectual and social history. Mengele recalls biology and eugenics as prestigious fields associated with the promise of a modern, functional society, and invokes an ideal of ancient Greece in which the individual yielded to the community. He then folds those ideas into a Nazi political mission: purifying the population, acquiring living space, and reshaping humanity. This retrospective account is self-exculpatory, but it makes clear the ideological bridge he claimed between academic formation, state policy, and mass violence.

Selection and Persecution at Auschwitz

At Auschwitz, biological classification became a procedure with immediate consequences. Josef Mengele spent long periods at the arrival platform, directing deportees toward forced labor or death. His authority operated through a stark division: people were assessed according to whether they were judged useful to the camp’s labor needs, while those deemed unable to work were sent to be killed. The language of selection converted a decision about human lives into an apparently functional task.

The same logic shaped the experiments described by Miklós Nyiszli, a Jewish doctor compelled to work for Mengele. Twins and people with physical differences were subjected to repeated tests without consent. The research treated their bodies as material for comparison and treated their deaths as part of the investigative process. Nyiszli’s account records the gap between the scientific purpose claimed for this work and the suffering and killing on which it depended.

The work also connected the camp to academic research beyond its boundaries. Samples from prisoners were sent to the Kaiser Wilhelm Institute for Anthropology, Human Heredity and Eugenics, directed by Otmar von Verschuer, with instructions that they be treated as urgent war material. This transfer made the relationship between camp violence and research institutions concrete: the camp supplied material, while scientific networks gave that material a destination and an asserted use. The language of research did not remove the violence from the process; it helped organize and legitimize its products.

Professional Duty as a Defense

Mengele’s conduct at Auschwitz was marked, in Nyiszli’s account, by sustained attention to research even late in the war. He returned to the laboratory and reviewed records of the twins he had processed, attending closely to the documentation of his work. That concern for files and research procedure stands in sharp contrast to the violence underlying the experiments. The book uses this contrast to show how professional order could coexist with disregard for the people subjected to it.

Years later, when his doctoral degrees in medicine and anthropology were withdrawn, Mengele understood the decision as an assault on his identity and career. He blamed Germany for repudiating work he had once believed it supported, and insisted that the system had encouraged or permitted the killing. His account transfers responsibility outward—to the state, the law, and the society that formed him—while preserving his belief that he had acted competently and courageously. The revocation therefore becomes more than a personal humiliation: it marks a public rejection of the credentials and scientific legitimacy with which he had invested his identity.

During a later confrontation with his son Rolf, Mengele again described his work as a military and scientific duty to preserve a biological community and remove those he classified as foreign or inferior. He claimed that he had tried to save people judged capable of labor, and that the twins had benefited from his research. He also invoked obedience and the machinery of the camp to deny responsibility for its crimes. These claims reveal a consistent method of self-justification: define a population as a biological threat, recast killing as protection, and describe personal action as an unavoidable duty.

Human Consequences and Historical Judgment

The survivors’ testimony at the 1985 mock trial in Jerusalem brought the consequences of this ideology back into public view. Former subjects described experiments on twins and newborns and called for Mengele’s capture. Their testimony challenged the vocabulary of research and duty with accounts of the people who had endured the practices that vocabulary concealed. The event renewed international pressure to find him, linking the history of Nazi Biopolitics to the still-unsettled question of accountability.

The book’s treatment of Nazi Biopolitics thus moves between an abstract program and its human consequences. The ideal of a healthy, racially defined community depended on classifying people and withholding the protections ordinarily owed to them; in Auschwitz, that classification governed selection, forced labor, experimentation, and death. Mengele’s postwar defenses preserve the same hierarchy in another form, presenting victims as biological problems and himself as an instrument of science and state. Survivor testimony and the withdrawal of his degrees instead expose the moral and institutional failure at the center of that claim.