query: How many people died during WW1?
passage: World War I casualties
The total number of military and civilian casualties in World War I were about 40 million: estimates range from 15 to 19million deaths and about 23million wounded military personnel, ranking it among the deadliest conflicts in human history.
passage: List of nurses who died in World War I
An estimated 1,500 nurses from a number of countries lost their lives during World War I. Some died from disease or accidents, and some from enemy action.