(EN) Ronald Cedric White, American Ulysses: a life of Ulysses S. Grant, New York, Random House, 2017, p. 96, ISBN 978-0-8129-8125-4, OCLC 988947112.
«The Mexican War of 1846-1848, largely forgotten today, was the second costliest war in American history in terms of the percentage of soldiers who died. Of the 78,718 American soldiers who served, 13,283 died, constituting a casualty rate of 16.87 percent. By comparison, the casualty rate was 2.5 percent in World War I and World War II, 0.1 percent in Korea and Vietnam, and 21 percent for the Civil War. Of the casualties, 11,562 died of illness, disease, and accidents.»