Prinzing's study, framed by the Carnegie Endowment's anti-war mission, treats epidemic disease as a measurable consequence of military conflict. The work compiles mortality tables, troop movements, and outbreak chronologies from the Thirty Years' War through the Balkan Wars, grounding its arguments in numerical evidence rather than anecdote. The editor, Harald Westergaard, a statistician, likely shaped the book's reliance on comparative data across conflicts.

Cholera's March with the Prussian Army

The 1866 Austro-Prussian War provides the book's most detailed case study. Prinzing traces cholera's spread from infected recruits in Silesia and Saxony to the battlefield at Königgrätz, then along supply lines into Bohemia and Austria. He cites Niedner's compromise: Prussian troops disseminated the disease in Bohemia, Austrian troops elsewhere. The numbers are stark: 114,776 Prussian civilian deaths from cholera in 1866, plus 4,529 soldiers—more than the 4,008 killed in action. The disease killed 165,292 Austrians across crown lands, with Moravia losing 55,527 and Bohemia 42,730. Prinzing's method is to correlate troop concentrations with outbreak peaks, using contemporary authorities like Daimer and Presl to weigh competing explanations.

Typhus in the Napoleonic and Crimean Campaigns

Earlier chapters examine typhus (then called typhus fever) as a camp disease. Prinzing draws on army medical returns to show how overcrowding, poor sanitation, and cold weather created ideal transmission conditions. The retreat from Moscow in 1812 is treated not as a narrative of suffering but as an epidemiological event: the disease spread from the Grand Army to civilian populations along the route. For the Crimean War, he compares French and British mortality rates, noting that French troops, despite worse conditions, had lower typhus death rates—a fact he attributes to better hospital organization. The analysis avoids moral judgment, focusing instead on quantifiable factors like troop density and supply chain breakdowns.

Plague's Recurrence in Ottoman and Russian Conflicts

Prinzing documents plague outbreaks during the 18th-century Russo-Turkish wars and the 1828–29 campaign. He notes that plague, unlike cholera, was often contained within military lines when quarantine was enforced. The 1770–72 Moscow plague is linked to troop movements from the Turkish front, with mortality figures drawn from Russian medical records. The author's reliance on published sources—often official returns—means the data reflects state reporting biases, a limitation he acknowledges implicitly by comparing multiple accounts. The section on the 1877–78 Russo-Turkish War shows how plague receded as medical knowledge improved, though typhus and dysentery remained lethal.

Statistical Method and the Limits of Evidence

Throughout, Prinzing foregrounds numbers: death rates per thousand, percentage of army strength, comparative tables across wars. He frequently notes when data is incomplete or contradictory, as with the 1866 cholera debate between Niedner and Daimer. The book's structure—chronological by war, then by disease—reflects a taxonomic approach typical of early 20th-century epidemiology. Westergaard's editorial hand is visible in the uniform presentation of tables and the inclusion of the Berne conference appendix. Readers should note that Prinzing's sources are almost exclusively European; the work does not cover colonial campaigns or non-Western medical systems. The evidence is strongest for the 19th century, where military record-keeping became systematic.

Prinzing's work remains a reference for the quantitative study of war and disease, though its data must be read with awareness of the period's diagnostic categories and reporting gaps. The book is best approached as a primary source on early epidemiological reasoning rather than a definitive medical history. Readers interested in the social impact of epidemics may find the mortality tables more revealing than the narrative summaries.