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 19 million deaths and about 23 million wounded military personnel, ranking it among the deadliest conflicts in human history.
France
France was a member of the Triple Entente when World War I broke out. A small part of Northern France was occupied, but France and its allies emerged victorious against the Central Powers at a tremendous human and material cost. World War I left 1.4 million French soldiers dead, 4% of its population. Between 27 and 30% of soldiers conscripted from 1912–1915 were killed. The interbellum years were marked by intense international tensions and a variety of social reforms introduced by the Popular Front government (annual leave, eight-hour workdays, women in government).