Effects of war
Based on 1860 census figures, 8% of all white American males aged 13 to 43 died in the American Civil War, including 6% in the North and 18% in the South. Of the 60 million European soldiers who were mobilized in World War I, 8 million were killed, 7 million were permanently disabled, and 15 million were seriously injured.During Napoleon's retreat from Moscow, more French soldiers died of typhus than were killed by the Russians. Felix Markham thinks that 450,000 crossed the Neman on 25 June 1812, of whom less than 40,000 recrossed in anything like a recognizable military formation. More soldiers were killed from 1500-1914 by typhus than from all military action during that time combined. In addition, if it were not for the modern medical advances there would be thousands of more dead from disease and infection.