সংক্ষিপ্ত বিবরন : In countries that suffer prolong wars don’t only suffer the distraction but also infectious diseases that change into epidemics. These diseases afflict the war waged country and at the same time spread through prisoners, returning soldiers, and in other ways, into the land of the victor, where it usually extends over a large territory. Unlike most reports, this study includes the mortality rate of civilians due to war pestilences who did not take part in the army. The writer has drawn as much as possible from original sources; like the Napoleonic Period, and the epidemic of small-pox after the Franco-German War. These epidemics are ideal examples of what horrible losses both friends and enemies may suffer as the results of war. Whether the germ of the disease is already in the place, or whether the soldiers bring it with them, either way, there is a danger that the fighting armies will cause the disease to spread over the entire scene of the war, and thus seriously endanger thousands o