The author contends that Adolf Hitler pursued his policies to eliminate Jewish populations throughout Europe even to the detriment of pragmatic wartime actions such as moving troops and securing supply lines. As an example, Dawidowicz notes that Hitler delayed railcars providing supplies to front line troops in the Soviet Union so that Jews could be deported by rail from the USSR to death camps. She uses records of "one-way" rail tickets as additional documentation of those sent to camps.